A prostitute that has dried up sperm on the outside or the inside of her body.
Man 1: Did you see the dried up sperm all over that prostitute?

Man 2: Yeah! She was a proper frosty prosty.
by DDDDDDREEEEEEW June 22, 2011
A cold prostitute; a prostitute that is out in extremly cold climate!
lets get some frosty prostys tonight
by Shane-a-ferd December 24, 2007
A frigid cold bitch that sells her body in exchange for a form of currency, most often associated with badonkadonk!
That frosty prosty was so frigid that my dick shriveled up just thinking about mounting her ass.
by STE MURDA October 13, 2005

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