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1 definition by Otis Redding

 
1.
Akin to the Hoodie Rat, the Avenue Rat is any person (most typically females) who parade up and down a college's "frat row" and/or main college street in constant search of a party.

They are often lushes and are not too far removed from being a skank or man-whore.
"Wow, Jim, check out all the Avenue Rats coming down University Avenue!"

"You know that skank, Karaline? She's such an Avenue Rat. I see her on this street almost every week!"
by Otis Redding April 30, 2006