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1.
a woman who's loose morals alow for compulation and discardment
I met this slingback lastnight fucked the shit out of her
by king osiris August 28, 2011
 
2.
Slingback is similar to feedback, in that you are receiving sexual (hopefully) stimulus resulting in a "slingback" or immediate sexual intercorse type response.
dis bitch brenda gave me some goodbop-- so good she got some slingback.
by ToastedZergling December 22, 2006