1. You are extremely cool.
   You need a nap.
2. You are out of line.
   You're a bad person.

Think of far out as another way of saying something is out of this world. In the age of "Star Wars" and "Battlestar: Galactica," being out of this world was clearly cool.

1. Go for a run
   Have dinner
2. Dance
   Sing

When you were heading out to boogie down, you had a night of dancing planned. It's worth noting that if you want to boogie right, it's got to be cool and fun. Square dancing probably didn't qualify as boogie dancing.

1. Go dancing
   Make dinner
2. Answer a question
   Perform a favor

When you need a friend to do you a solid, you're asking them for a serious favor. You're in need and you know you're asking a lot, but you're counting on your friendship to make it cool.

1. Try your hardest.
   Skip it.
2. Go early.
   Ace it.

Sometimes you just can't commit to showing up for something so you need to blow it off and just not go. You can blow off responsibilities and people, too, if you dismiss them.

1. Can you dig it?
   What's the buzz?
2. What's the skinny?
   Copacetic?

Can you dig it is a pretty versatile question that just seeks to know if you're on the same page. If you like what someone is saying, or understand it, or agree with it,, then you dig it.

1. Educational
   Exciting
2. Boring
   Scary

You can see where this one comes from. Something that's a drag is really dull and boring, and that tends to drag you right down and kill your mood.

1. Catch you on the flip side!
   Psyche!
2. Groovy!
   To the max!

Popular well past the '70s, yelling "psyche" at someone is a surefire way to let them know you just tricked them with a solid psyche out.

1. A jive turkey
   A disco queen
2. A cool cat
   Foxy

Jive turkey basically means any kind of person who acts or talks in a foolish way. They lie, they're inconsiderate, they're just not cool to be around.

1. It's funny.
   It's confusing.
2. It's boring.
   It's intense.

Something that's heavy is something that is kind of intense. It's not unimportant or goofy or the kind of stuff you can brush off. This is a big deal.

1. Cool beans
   Are you down?
2. What's the skinny?
   To the max!

When someone wants the skinny on something, they need you to fill them in on the important details.

1. Copacetic
   A bummer
2. Ace
   Deadset

Something is a bummer because it bums you out. And why does something bum you out? Because it's just not cool at all, man!

1. Spaz
   Stella
2. Cool Cat
   Airhead

If someone's an airhead, it's not a good thing at all. Basically you're saying their brain has been replaced by an empty space.

1. Individual
   Cat
2. Operator
   Human

Cat was a pretty blanket term for people. You can use it in all kinds of situations. "This cat just sold me a far out burrito!" or "These cats have HBO!"

1. Smokey
   Stone Fox
2. Rube
   Spaz

"Don't be a spaz" is the kind of thing you might say to someone who's freaking out, or keeps messing things up. You didn't want to be a spaz because it meant you were uncool and not in control.

1. Dude
   Smokey
2. Constable
   Bobby

Popularized by the movie "Smokey and the Bandit," the name smokey was a reference to the hat worn by highway patrol officers that looked a lot like the one worn by Smokey the Bear.

1. Book it!
   Boogie down!
2. Beat the drag!
   Keep on truckin'!

If you need to get somewhere in a hurry, you're going to book it. Why that term? Maybe it had something to do with "Hawaii Five-O" and the catchphrase "book 'em, Danno" as someone was being taken away.

1. An athlete
   A good friend
2. A loser
   A co-worker

It's never a good thing to be called a chump. This name isn't vulgar, but it does imply that you're a fool or a loser. Definitely not someone to be taken seriously.

1. He's not cool.
   He's a genius.
2. He's from out of town.
   He's short.

Hanging out with a square was never fun because squares just aren't cool. They're rigid and strait-laced and just don't quite fit in with all the cool people. Of course, maybe you just need to get to know them.

1. Trippin'
   Tattered
2. Copacetic
   Foxy

You can thank Jimi Hendrix for making this term super popular with his song "Foxy Lady" that came out just before the '70s started. It still gets tossed around today, so people must like it.

1. Strangers
   Professional athletes
2. Authority figures
   Your friends

In many instances "the Man" was a reference to police, but it could also stand in for the government, teachers at school, your boss or even your parents if you were feeling a little dramatic.

1. See you later
   Change a record
2. Use the CB Radio
   Order food

Saying goodbye or see you soon are perfectly acceptable ways to part company, but telling someone you'll catch them on the flip-side to let them know you'll see them later just sounds cooler.

1. Go swimming
   Run naked
2. Go dancing
   Paint

It's hard to say why streaking was a fad for a while, but it seems to have been. Essentially it was just someone getting naked and running through a public area, presumably in warm weather.

1. A solid building
   A very attractive woman
2. A stubborn person
   A physically strong person

If the Commodores were to be believed, a brick house was "well put-together, everybody knows this is how the story goes." It was a really popular song, so take their word for it.

1. Stay in school.
   Drive faster.
2. Keep doing what you're doing.
   Go to work.

Trucker culture was oddly popular in the '70s, so this probably came out of that. Keep on truckin' is a pretty weird saying that doesn't actually mean much of anything except affirming that you agree with whatever the person you're talking to is doing.

1. Peace
   Sound as a pound
2. Dream on
   What's your 20?

Dream on became big thanks to Aerosmith and their song of the same name. When you tell someone to dream on, you're implying that obviously, they're dreaming right now, because it sure isn't reality they're talking about.

1. Excitement
   Fear
2. Boredom
   Love

This phrase was very much rooted in the '70s thanks to the show "Good Times." Jimmie Walker played a character name J. J. Evans who used to regularly say "dy-no-mite" to express his excitement and appreciation for this.

1. Indubitably
   Right on
2. You got it, Pontiac.
   Ten-Four

CB Radio and trucker culture were big in the '70s and that made things like "10-4" take off with use in movies and TV shows. There's actually a whole list of number codes with different meanings. 10-6 means you're busy and 10-9 means you need someone to repeat themselves.

1. They literally burnt themselves.
   They got insulted.
2. They fell down.
   They have to leave.

The word "burn" has had a long life and "That '70s Show" is probably responsible for resurrecting it in more modern times. But it was a product of the '70s and used to indicate that not only was someone insulted, but they were also insulted badly.

1. They're totally confused.
   Things are really bad.
2. Things are fine.
   They're sick.

Copacetic is a strange word and apparently, no one even knows where it came from. There are some theories, but they're pretty diverse and range from Chinook to Hebrew to the African-American community of the early 1900s. Where it came from, it just means things are going the way they should.

1. Red beans
   Cool beans
2. Best beans
   Jumping beans

The term "cool beans" existed well into the '80s but it was popularized in the '70s as a way to express that not only did you agree with someone but you also had a pretty positive feeling about what they were saying.

1. Funky
   Chill
2. Lame
   Square

Lots of things were cool but if they were funky, they were a bit different. Funk music was popularized in the '70s with songs like "Play That Funky Music." That song still pops up today and is still pretty funky.

1. Money
   A handshake
2. High-five
   A hug

If you're slapping some skin, you are giving someone a high-five. That makes sense since it's an extremely literal definition of what a high-five actually is.

1. They're a chef.
   They're a drag racer.
2. They're a cop.
   They're a drug user.

Someone who is a burn out is someone who is known to use drugs, generally in excess. It's not a complimentary term at all, so when someone gets labeled a burn out, it usually means people think they use drugs way more than they should.

1. Welcome Back, Kotter
   Good Times
2. All in the Family
   Sanford and Son

Up your nose with a rubber hose was arguably an insult, though it didn't mean much. It was the go-to phrase of Vinnie Barbarino on "Welcome Back, Kotter" when he couldn't think of anything else to say.

1. Gentle
   Boring
2. Intense
   Small

The word gnarly used to mean something knotted and rough, like old tree branches. In the '70s, it became surfer slang for an intense or dangerous wave and then through the '80s, it could stand in for something awesome or something disgusting. Context is everything.