Top definition
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 22, 2010
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
by ecogoth December 30, 2020
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3
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 October 10, 2008
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5
"Uncuff ya chick brah, its FYB"

"Yo bitch is choosin, jez FYB!!"
by b r e e e e z y July 27, 2009
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6
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
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