Any of these sound familiar? Here are some of the slang terms that were coined or popular in the late 1970's:

• Airhead: stupid person  
• Bad: nice, cool  
• Bitchin': way cool, awesome.  
• Bogart: to hog something, keep it to your self, be selfish. Usually meant holding on to a joint too long without passing it on.  
• Bogus: phony, lame, a disappointment. "That was a bogus concert". 
• Book, booking: To leave or move in a hurry; to run quickly, usually away from something. "The cops were after him so he was  really booking." or "Let's book."  
• Buff: physically well built. "He sure is buff.  
• Boogie: to dance; also can mean to leave. "Want to go to her house? Sure let's boogie". 
• Bummer: A depressing, negative event or thing. "What a bummer".  
• Burn: when you've been dissed, proved wrong. 
• Burn-out: a regular user of drugs.  "He's such a burn out".
• Catch You On The Flip side': see you later.  

• Decent:Very cool; something you are excited about. "The Kiss concert is going to be so decent." 

• Don't Be Such A Spaz: A 'spaz' was someone that was accident prone,clutzy, or just acting stupid.
• Doobie: joint, marijuana cigarette.
• Fake Out: To deceived trick. "We faked him out good!"
• Flash Back: Sudden memory of a past time or event. Feeling high /acid flash back.
• Foxy: Very attractive girl, "She's pretty Foxy!"
• Gag Me With A Spoon: something weird or disgusting .
• Get Down & boogie: dance
• Gross: anything disgusting, unacceptable, rude or unpleasant.
• Head: someone who is a pot head or druggie.
• How's It Hangin': how are things going with you; how are you feeling.
• Later: See you at another time.
• Let's Blow This Pop Stand: Let's leave.
• Let's Boogie!! Let's get out of here or leave this place.
• Man: an word usually added to the end of a sentence. "Hey, man". How's it going man?" 
• Mellow Out: Chill out; Calm Down
• Narc: Tattler; Someone who turns other people in, snitches
• Pardy, Hardy: to seriously party!
• Psyched: Excited. "I'm so psyched about this REO Speedwagon concert."
• Psyche out: to trick someone, fool.
• Radical: Cool,awesome,sweet. "That was RADICAL man." 
• Scarf: To eat with great appetite and gusto.  "I scarfed down the entire bag of chips".
• Sit On It: Made popular by "Happy Days," it means basically "shut up," "go to hell," or some other exasperated expression.
• Sit On It & Rotate: crude insult, usually said to someone while flipping them the bird.
• Smokey: used in the C.B language to define a cop.
• Split: To Leave. "I'm gonna split"
• Stoned: high on dope; wasted.
• Stoner: someone who does alot of drugs.
• Streak: To run in public in the nude. Very popular in the "70's.
• Take A Chill Pill: Calm down, cool out. 
• That's Bogus: That's a raw deal, That's not fair.
• That's Sick!' :To describe something odd or unusual; something suspect but also intriguing. "Sick!"
• Toking Up:The act of smoking weed.
• Turkey: Synonymous with "jerk" or "idiot".
• What's Happenin' Man: How's it going? What's up?
• What's Shakin'?: Casual greeting; equivalent to "What's Happening?", "How's it going?"
• Wicked: Cool' as 'That Boston concert was wicked.'  
• You're So Stunned: Meaning the person acted or said something stupid, dumb.