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2.
Abbreviation of What the Facebook? An appropriate response to questionable or hilariously stupid Facebook posts or updates.
Yeah, troll dolls? WTFB?
by Mody C. July 11, 2010
 
1.
Abbreviation of "What the Fuck Bitch" An enhanced more angry form of WTF. Just another random internet saying usually said by angry fat people.
Josh: Man u suck balls at poker.

Cameron:WTFB!?
by Repaye February 07, 2008
 
3.
Combination of WTF and FB. Literally, a "what-the-fuck-buddy". Someone you like, and have sex with, but can't tell whether or not you're in a relationship or not.
J: "I haven't seen my WTFB in almost a week."
M: "... I just hung out with him yesterday."
J: "He gets along with my friends better than I do! When do I get to have sex with him again?"
by Jake_W May 29, 2009
 
4.
Literally, What The Fuck Boner, a WTFB is an erection which develops at a seemingly inexplicable moment. It is characterised by a swelling of the penis, as well as a distinctive absence of arousing stimuli.

When a male gets a WTFB around a group solely consisting of other males, it is appropriate to announce your WTFB publicly, so as to avoid being labelled a fag.
"Dude, I was doing my maths homework when suddenly I got a WTFB. Wtf?"

"Woah, WTFB. Don't know why that happened around this group of athletic and sculpted men."
by Innominate February 01, 2008
 
5.
Literally, What The Fuck Boner, a WTFB is what one develops at a seemingly inexplicable moment. It is characterised by a swelling of the penis, as well as a distinctive absence of arousing stimuli.

When a male gets a WTFB around a group solely consisting of other males, it is appropriate to announce your WTFB publicly, so as to avoid being labelled a fag.
"Dude, I was doing my maths homework when suddenly I got a WTFB. Wtf?"

"Woah, WTFB. Don't know why that happened around this group of athletic and sculpted men."
by Innominate January 26, 2008