Top Definition
A condition where two girls gossip or just talk trash about their mutual friend behind her back..
bitch 1: "did you hear about Cristina blah blah blah"
bitch 2: "yeah I did, omg blah blah blah"
random eavesdropper: "those two have a serious case of bitch syndrome (bs)"
by SirWordMaster April 12, 2013

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When someone gets hurt, and won't stop bitching about it. Primarily directed to hockey and lacrosse goalies.
Goalie-"Don't shoot it that hard, it hurts"
Player-"Looks like you have a case of bitch syndrome (BS)"
by Sir Lax Alot June 30, 2012

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