Or known as Skinny Bitch Syndrome. This phenomena occurs amongst females and males alike. For women it causes them to become obsessed with the males abdominal muscles ignoring the usual bird chest, bird legs, bitch pecs and a scrawny back due to the fact that the males are skinny bitches (S.B.S). For males SBS causes different effects, makes men forget about all other muscle groups to focus on there abs and nothing but there abs and the occasional biceps pump up. Be warned SBS could transend into a far more serious pandemic known as PBMS or (Pretty Boy Muscle Syndrome).

Ladies and gentlemen can percent this from happening common symptoms are:
Douche bag behaviour

Your boyfriend weighing less than you do

Men who have SBS pictures on MySpace or Facebook

Men/boys wearing tapout or affliction when you know they won't fight
Guy : so what's your favorite muscle on a guy?

Girl: Omg definitely abs there so hawt

Guy: oh you don't care about chest, triceps, traps, delts, lats, quads or hams?

Girl:......what are those? I like skinny boys with abs

Guy: oh god SBS -______-
by thatguido August 22, 2010
Top Definition
Sudden Boner Syndrome
by bert63 March 16, 2009
Sweaty Balls Sydrome
John: I am callling in sick because of a serious case of SBS.

Wendy: Okay, I am sure everyone at your work will understand
by Potterag September 26, 2009
Surprise But Sex
That guy was well stealthy mannn!!!! He nailed his SBS on that little whore.
by EpIcWeDgIe October 15, 2010

Acronym for Stupid Bitch Syndrome.
It is normally used to describe one's (generally a woman's) negative attitude that is unnecessary given the current situation.
"Wow, that girl's got S.B.S."
by LeashyIn330 April 14, 2010
Stupid Bitch Syndrome
dude your girlfriend has SBS.
Why does it seem like every chick suffers from SBS?
by Chefboy532 December 21, 2010
Acronym for "Sexy By Summer", as coined by BeefCheef
No way man, gotta eat healthy, SBS remember?
by BeefCheef May 16, 2011
Shy Bowel Syndrome
SBS is when you are staying at a friends or boy friends house for an extended period of time, and you're to shy to poop.
by Exposure to light October 24, 2010
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