Top definition
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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2
Someone who dresses or acts slutty and is also childish and immature. They tend to be very insecure and lash out.
Kat is being such a Slutbaby, she keeps threatening Lynne because Kat's friends think Lynne is awesome. Maybe people would like Kat better if she didnt have sex with anything that moves and acted like an adult.
by SoberStoner June 23, 2010
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