Some words from my days.

 Some of the words used alot were:
Gumption
Contankerous
Fuddy duddy
Wacky
Cahoots
Flew the Coop
Hit the road
 Old Geezer 
Nutty as a fruit cake
Cool as a cucumber
Cold as all get out
hooligans
Slow as Molassous
Watch your P's and Q's

Get your kicks: to have fun.
Knuckle sandwich: to get punched
Loose your cool: to get angry.
No sweat :something that was easy.
Pad : someone’s home;

Shook up:  very excited.
Square : someone who is old-fashioned and not “hip.”
Split : to leave in a hurry