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refers to damaging your genitals through playful but violent activites Can be used with parting words, as a warning or to describe a lack of life experience.
"You are 25 and you have'nt wrecked 'em yet?"

(to someone play fighting)"Hey, careful you don't wreck your genitals."

"bye jay, don't wreck 'em!"
by pixie December 01, 2004