Billy 

Billy is a British slang term used when someone sent a text (most likely on discord) that made their friend laugh out loud in public

Blev: "Ur mum"
Devito: "bro you made me billy

Present tense
Blev: ur gran is bad
Devito: bro im billy-ing so much rn stop

Past tense
Frank: ur uncle felt me up
Reggie: I almost billied you b word

Billy by Ur_dadlovedme October 16, 2021

Billy 

Slang word for the feeling of being slightly high from marijuana.

"I feel slightly Billy"

Billy by alex.patel_99 January 17, 2022

billy 

billy is a name that is generic to many reaction youtuber who like to say "hit that like button in the face!"

infinite/sssniperwolf: "ayo little billy over here wanna have sex with his history teacher lol"
children watching: "ummmm..."

billy by screechturnr October 12, 2022

Billy 

(Australian slang)

A bong for smoking marijuana.

Possibly derived from another Australian word -Billabong- Which means a large body of stagnant water that emerges only after a cascade of rain.

Hey mate, chuck us the billy, so i can pack a Mount Fuji into the cone-piece!

Billy by SLIKDAWG August 15, 2023

Billy 

An autistic piece of shit who is often found in a wheelchair. He usually has aids and is dying of down syndrome. He is exactly 32 years old and has never gotten laid.

Billy, I'm going to take away your pills!

You are autistic, Billy.

Billy by Larry Ty February 22, 2019

Billy 

A virgin

Imagine being such a Billy that you have to lie about getting a blowjob

Billy by 40pcMcNuggies March 9, 2021

Billy 

Another name for butch lesbians or women who dress in male drag. "Billy" Derives from the 1940's swing musician Billy Tipton who disguised herself as a man.

1.Cecilia's new girlfriend is a Billy. She's very tough and masculine. 2. Those Drag Kings are very Billy!

Billy by The Big Lebowski Dude November 22, 2007