What a roll of bungwipe becomes when it falls into the toilet and subsequently requires disposal.
{Ed}: Myrna, can you run get me another roll of assiton assimilators please? This roll fell into the can, becoming toilet bowl paper!
{Myrna}: Ed, that's the third time this month that you've made toilet bowl paper! Won't you please fix the TP dispenser?!?
to cross the line; an egregious faux pas; to say or do something so offensive or outrageous it brings everything to a grinding halt; like going to a party and shitting in the punch bowl.
"It was funny until Josh said that thing about his wifeliterally having sex with a rat."
"Yeah, he totally shit in the punch bowl on that one."