1920s Slang we should bring back for the 2020s:

Dewdropper A lazy person

Giggle water Alcohol, liquor

Bee's Knees An extraordinary person/thing/idea

Butt me "Can I have a cigarette?"

Cat's Pajamas See "bee's knees"

Dolled up Dressed up

Egg A rich person

Flapper A stylish, opinionated modern woman

Get a Wiggle On Get going

Heebie-Jeebies A spooked feeling

Ossified Someone who is drunk

Putting on the Ritz Doing something with style

Swell Wonderful.