FYB

Means "Fuck yo bitch" The act of stealing a man's girlfriend/wife/person they're talking to and fucking, not neccessarily in that order.

"Damn did you heard what happened to Chris Green?"
-Dude 1

"Naw, what happened?"
-Dude 2

"Cam and T-Sqz FYB'd him with his top two females on his team."
-Dude 1

"Damn, haha."
Dude 2

by That Guy and his friend October 23, 2010

Fyb

Fucking yo bitch

Nathan:this is why you got a fucking shrimp

Alex:this shrimp is fyb pussyfart

by Ds.sucker January 26, 2022

FYB

FYB is a popular term among(us) youths that is an acronym for 'Fucking Your Bitch' or 'Fucking Yo Bitch'

It is particularly hilarious to troll someone's Sendit on Snapchat by spamming it with confusing or funny things and including 'fyb' in each one.

Gym bro: Hey broski do you lift? Like...are you getting them gains yk🥶
Fully lit bro: Nah dude I'm way too busy FYB
Gym bro: OHH DUDE THAT WAS A FULLY SICK AS ROAST. MADE RESPECT FR THAT WAS SAVAGE.

by gymbro6969 April 25, 2022

fybs

Fuck your bull shit

Chick you're tripping...fybs.

by Macho2r May 25, 2010

FYB

Fill Your Boots - inviting someone to go ahead and do something

"Do you mind if I eat the last of the cake?"

"FYB, man."

by Ninjafingerofdoom February 24, 2013

FYB

Fuck Yeah Bitch! An expression used when something is really exciting, or awesome.

"I'm so glad it's Friday, I'm going to get so drunk tonight"

"FYB!"

by mjs82 January 20, 2009

Fyb

Fuck you bitch

Your so flat

You know what fyb

by Ok_jasminz April 07, 2019