FBT 

An acronym for FAT BOY TENDENCIES. Used when consuming excessive quantities of unhealthy foods that fat boys love.

Oh fuuuck bro Ryuh!! You just ordered a California Carnitas Chimichanga with extra sour cream and a large Horchata? That's hella FBT!!

FBT by SnuKs September 4, 2008

FBT 

Fat Bastard

Usually used to describe overweight, nasty men. Such men spend most of their time trying to make others feel bad and the majority of people give them a wide berth. Literally!

That guy is a right wanker, he needs to lose some weight too, what a FBT.

Yeah, I heard that FBT hasn´t seen his penis in about 12 years and the wife now has a nervous tic.

FBT by Australia2006 February 3, 2010

FBT 

Fuck boy trash

Drop him he’s a FBT
Sploosh Ahmed is a FBT
FBT alert
Well, what do you expect from a FBT?

FBT by Kuukuu November 6, 2020

Fbt 

Fbt- full body tracking
Entering into a vr game or app with your head, hands, waist, and feet being tracked for better immersion

“Bro curly just got fbt yesterday” “no way bruh” “well then you ask curly yourself “

Fbt by Ronainsane September 17, 2022

FBT 

Face Book Time - the same as Daylight Savings time where you lose an hour just by going on FaceBook and have no idea where that hour went.....

I thought you said you'd be here an hour ago
Yo, I was on my way out the door and I went on FB to check my messages and dang, before I knew it I checked my watch and realized I was on FBT

FBT by TaggedandBagged November 20, 2011

FBT 

acronym: FaceBookTroll

People that feel the need to make comments about every one of their friends posts/comments because they have nothing more pressing to do.

They also tend to double comment before anyone else can respond.

Emily: "Can believe how many times Gerald commented on your picture?"

Justin: "Tell me about it... He's such an FBT!!"

FBT by 52kaerfegac August 17, 2009

FBT 

Fucking Butt Turd; usually used to refer to someone who is bad at sports

Umpire: Strike 3, you're out!
Joey: Man Rob, that's your 3rd strikeout, you're such a FBT.

FBT by Wesley Huff June 24, 2010