A young girl that is by definition a "slut" before she hits puberty.
How old is that girl?

Twelve, and she has had sex with five guys in her class.

Wow.

Yeah, she's a total Slut Baby.
by Jack Hambit August 13, 2010
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A derogatory term used mainly for females. Combines the popular terms for loose or promiscuous women, whorebag, and slut. The added term baby refers to the age of the person being insulted, often implying that they are much too young and/or naive to be acting in such a manner.
Jane: Did you see that freshman girl? Her clothes barely cover her! I don't think she was wearing any underwear either!
Sue: That was no freshman, that girl is in the 7th grade!
Jane: What a whorebag slut baby!
by Em C March 13, 2008
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a young girl//guy who is a slut. they're usually freshman thinking that they're cool, when really they're just doing it for attention & to get with the hottest girl//guy in school
Dan: oh my God! did you just see those baby sluts back there!
Jeff: yeahhh! lets go see if they'll give us head!
by iltn June 13, 2009
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someone who is a little bit of a baby(immature), but also a little bit slutty...originally started out as an insult, but has evolved into an endearing term.
I like Bob...he's such a baby slut!
by sassy babushka November 26, 2007
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an underclassmen who thinks their cool but really they are annoying an loud and sleep with every guy they put their hands on. If you offer them a bag of chips they will suck your dick or get you in bed. they swallow... ALOT!
Sarah calkins, Sydney simmon, Mikayla orner, Rachel cox, baby slut.

Jack: Hey man, did you see that girl sarah today?

Bill: Yeah bro, shes the leader of the baby sluts!
Jack: Baby sluts!!! man, those girls are sluts!
by jill15 October 4, 2011
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