bb is short for bottom bitch, or a butt buddy (someone you are so close with that its almost gay). This can only be achieved by very close friends.
by Fatniss Neverlean March 26, 2015
by Flash[ZD] May 8, 2009
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Shorted for basic bitch
Gosh, Mary is such a bb. Did you see ehat she was wearing? Leggings and uggs, she even had a starbucks drink on her.
by Esor68 May 17, 2018
Abbreviation for 'big boobs'
by pquinn January 22, 2012
by itsmebitchxx February 28, 2019