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(n) a venerial disease categorized as EVERY STD mixed together into one, rolled up and slapped onto your genitals until your nuts fall off
"Hey did you hear about Mick Jagger? He slept with so many groupies that he caught wrenchies!"
by BadMother August 30, 2005
A young 13 year old boy who got a wrench shoved in his anus.
Did you here about how Wrenchy got his name?
by Potsmokin Pete February 23, 2009