So, like, I can throw a party balloon filled with 1.7 liters of urine at someone and it will be acceptable, as long as I remember to shout: DANGEROUSLY OVERFILLED PISS BALLOON as I toss it?
Alternate names for consideration: pissengan, urinitron, bakapeepee
EDIT: before you even tell me that I can’t go around hucking piss balloons, remember that these people might literally poke me in my actual anus, as a prank. If someone does that shit, I’m definitely piss-ballooning them, at the earliest opportunity.