What is Man Grenade?
1.
1: a male 
2: a male package visible through his pants
"Why does he have to wear spandex? You can see his man grenade from here."
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2.
The cock blockin Fat chick you have to jump on so your buddy can get the hottie.
"This fat bitch has been cock blockin me all night I need you to jump on the man grenade"
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Random Words:
1. 
A comical act of squeezing ones nut sack so that ones testicles extrude out of the top of their fist thus appearing like ET in a headloc..