It means Brush Shit Bath. It can be used to describe a person morning routine.
Timmy:- Hello
Frank:- Hello, did you BSB?
Timmy:- Not yet
Frank:- It's 12 already, go and do it stupid!
by WDTDS June 20, 2021
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Bsb: A back stabbing bitch She hurt you and is a total asshole.
Jeez that Megan girl is such a Back stabbing bitch
Oh! You mean a bsb?
by thiccthot69 November 23, 2019
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backside bitch :-

Someone that looks great from the back ;
opposite is true whn they turn around .
person1:Wow , look at that gurl , she is working alright ! Oh yeah turn your around baby ,oooouuuuu CHOW !!!!she is a BSB
by warna_2003 February 22, 2005
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Bull Shit Barry

Some one who bullshits all the time.
Thats total BSB...
by Musk9 August 19, 2008
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BSB or Bull Shitting Bitches.
A term used to describe any female of any age that does nothing but bull shit.
Guy: Hey girl what are you doing this weekend?
Chick: Nothing
Guy: you wanna chill
Chick: Sure Okayy!!!

The weekend
Guy: we still gonna chill
Chick: no im sorry ive got to go shopping with my mom and friends.
Guy: Damn shes a BSB
by TRM The Truth April 15, 2009
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Bathing suit Body, a hot body when one wears a bathing suit, preferably 6-8pack abs and an over all well defined torso.
It's only Februrary, but i'm going to the Bahamas this summer, gotsta work out to get my BsB.
by Don't Worry bouts it February 13, 2008
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