The act of farting into an empty gatorade
bottle (or container with similar
liquid volume capacity), capping it, and tossing it to a friend (or foe), for him (or her) to
later open and be greeted with the gift that keeps on giving...flatulence.
"Oh my god, bro. Why did you tell me to open that, it was foul!"
"
Don't be scared,
girl, it's just the ol' Peruvian Hand
Grenade."