Selections from "A Flapper's Dictionary" (1922)

Dimbox = A taxicab

Clothesline = One who tells neighborhood stories

Snugglepup = Young man who frequents petting parties

Petting party = Social event devoted to hugging

Finale hopper = Young man who arrives after all bills are paid

Sodbuster = An undertaker

Applesauce = Flattery or bunk

Forty-niner = Man who is prospecting for a rich wife

Tomato = Good looking girl with no brains

Cake-eater = Harmless lounge lizard

Mad money = Carfare home if she has a fight with her escort

Hikers = Knickerbockers

Grubstake = Invitation to dinner

Corn-shredder = Young man who dances on lady's feet

Dogs = Feet

Mouthpiece = Lawyer

Handcuff = Engagement ring

Cat's Pajamas = Anything that's good

Frog's eyebrows = Nice, fine

Plastered = A synonym for pie-eyed; oiled; intoxicated


There are many more at this link. Of the ones listed above, I believe "mad money", "dogs," and "plastered" have endured to the present; a few others (grubstake, cat's pajamas) are familiar to those who watch vintage movies.