Hot Refueling

When you're drinking a beverage, and taking a piss, at the same time. So named after a technique to rapidly turn-around helicopters, refueling while the engine is still running, here you're "refueling" while "burning gas".

"Hold on man, I'm going to take a piss"
"Want me to hold your beer?"
"Nah, I'll just hot refuel"

"I went to go take a piss, and wanted a beer. Welp, guess I'm hot refueling this time"