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6. BSG
Brian the Shit Guy. This is used for people named Brian who are really a pain in the ass and could even be called dickfucks. They're generally not too bright, sorta smell, and dress funny. But lets keep it quiet, 'cos BSG's are often very short-tempered.
"BSG you aren't too bright, sorta smell, and dress funny."
by Aitch Apr 5, 2005 add a video
1. bsg
Battestar Galactica - Used to refer to either the cult sci-fi show in the 70s or the sweet new one that began in the early '00s.
BSG is on right after Atlantis Friday nights on Sci-Fi.
by Steve H. May 20, 2005 add a video
2. BSG
Big Sweaty Girl
That lady at the store was a BSG.
3. bsg
Acronym for Bangin Sexy Girl.
Hey man did you just see that bsg leaving that shop, I going to try and get her number.
4. BSG
bitchy straight guy: a guy who comes off as a malicious, meddlesome, douchey and talks behind any and everyone's back but who is actually straight
Girl 1: omg, that guy is such a BSG
Girl 2: which guy?
Girl 1: that guy there, Spencer Pratt!
Girl 2: ohh yeah totally
5. bsg
big smelly gonads
wow dude i can smell your bsg from here
dude u bttr wash ur fuckin bsg
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