Reverse Hand Grenade Edit Meaning

1.

Slide your fist into someone's asshole and spread all your fingers out all at once.

Much like the regular hand grenade, but instead of using a vagina, you are using an ass hole.

"Did you hand grenadethat chick last night?"

"No, but I did do a reverse hand grenade!"

See reverse, hand, grenade, asshole, butt, fist, surprise, fingers