bum suck boy (BSB). basically, when a boy sucks bum by putting a straw in the anus and sucking to give maximum pleasure to the guy sucking.
adam is being a BSB, he stuck a straw up his boyfriends bum to suck it out.
by AdamWa June 25, 2010
Bad-sequence-of bitches; when a group of girls walk by and every single one of them is unattractive...
"Hey that was a long bsb."
by Mallott January 17, 2008
when a girl tells you that she had sex in the back seat of another persons car and does it rapeatedly (back seat bitch)
friend 1:i shag a guy in his car last nite
friend 2:you such a bsb
by tynan09 November 11, 2007
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

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.