40s-50s
70s-80s
90s
2000s
2020s
100

Cutting a rug

dancing

100

Copacetic

in order/OK/fine

100

All that and a bag of chips

Something that is great or particularly impressive

100

Rents

parents

100

Rizz

short for charisma

200

Ankle biters

children

200

Bogart

To selfishly take or keep something

200

Bling-bling

flashy jewelry

200

FTW

abbrev. for "for the win", to express approval or support

200

Bet

Agreed or okay

300

Fuddy-duddy

Someone who's old fashioned

300

Sound as a pound

very good/reliable

300

Getting jiggy

dancing

300

ROFL

rolling on the floor laughing

300

Say less

I understand

400

Gobbledygook

Nonsense

400

Out to lunch

one's mind is elsewhere, not paying attention

400

Outie 5000

"I'm leaving"

400

Chillax

calm down and relax

400

Ate (and left no crumbs)

executing something extremely well

500

Deadsville

boring/uninteresting place

500

The skinny

the truth 

500

Tubular

cool or awesome

500

Pwned

Utterly defeated, originating from video game culture

500

Cheugy 

uncool