Top Definition
This is actually a sarcastic way to call a person a slut without her knowing.

(Read the first or capital letter of those words.)

S weet
L ittle
U nforgettable
T hing

A.K.A.

S L U T
She had dyed her hair blonde, you could tell. And she talked like a valley girl. And dressed like a Sweet Little Unforgettable Thing.
by ATTYou January 24, 2010

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