Top Definition
A girl/woman who is for some inexplicable reason infatuated with a boy/man named Ross.

The Ross in question must be average in almost every way, leaving no reason for the Rosstitute to find him overly attractive.
God! That Rosstitute just won't quit following Ross around. What an obnoxious cow!
by The Majestic Moose April 28, 2011

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