An uncontrolable vibration or spasm of the groin forcing you to "spasm" your way towards the closest groin near you.A groin spasm is very highly contagious, and pain behind the testicles is sometimes felt. Whenever you see someone having a groin spasm, RUN. Groin spasms can be great sexual aids.
"Omg GET AWAY, thats guys having a GROIN SPASM!"
de Groinas Pubess 21 octobre 2006
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