1 definition by stephaaa!

Top Definition
Acronym for Secret Underclassmen Lust Object
Steph: Ughhhh, why does Anthony have to be a freshmen?!
Ashely: Ew Steph, you're a senior.
Steph: Well no shit, that's why he's my SULO ;)
by stephaaa! April 16, 2010
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