When an individual has shit that contains semen from unprotected anal sex, causing the shit to appear gray in color. Usually the case with homosexuals.
Cliff: HeyZach, you know that guy down the hall?
Zach: The one who shits gray?
Cliff: Yep. that gray pooper.
Zach: Yea. his shit is so gray, the gray pooper
a ceiling poop is when your in a bathroom with more then one stall in it. climb to the top of the stall and hold yourself up. then pull down your pants and try and shit in the toilet from the ceiling.
during school jeff tried a ceiling poop but hit the rim of the seat.