Plunger Effect

The unclogging of shit in the anis during the act of anal, resulting in an eruption of poo.

"Bro, have you ever tried anal?"
"Nah fam, I'm way too worried about the plunger effect."
"wtf is that?"
"It's when you have a massive shit due to anal."
"wait, who has the shit?"
"The receiver...obviously. "

"hectic..."