Top Definition
Stands for Because I Want To
or
Because I Wanted To
Geoff: i tried to goatse myself yday
Me: wut? WHY!!!11!!1
Geoff: lol
Me: srsly.....whyyyy!!
Geoff: biwt
Geoff: i did it for teh lulz XDDD
Me: dude ...... its not lulzworthy .....
by mimm April 21, 2008
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