when a male victim of homosexual rape reaches back between his legs and grabs the testicles of the raper and squeezes them as hard as he can. this technique is often a last ditch effort to halt the rape in progress.
this technique is called the "guatemalan" grinder grab due to the fact that first recorded occurrence of this technique was in Guatemala.

man 1: "why you walkin all funny ralph?"

ralph: "that dirty mexican i was raping last night gave me a guatemalan grinder grab... i think he popped my right ball!"

man 1: "harsh dude! that's why i always chloroform them first!"
by feldpar February 17, 2009
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