Dunkin Dump 

The sudden and severe need to move one's bowels minutes after consuming a Dunkin Donuts coffee.

"Hey dude, wanna grab a Dunkin Donuts iced coffee for the road?"
"That sounds good, but we're gonna have to stop for a Dunkin Dump ten minutes later"

Dunkin Dump by TruthStrangerThanFiction August 20, 2011

Dunkin Dumpin Donuts 

Dunkin Dumpin Donuts is the act of anal penetration.

Juan was in the park playing Dunkin Dumpin Donuts with the street boys.

Dunkin Dumpin Donuts by I, Wreckerrr October 3, 2016

Dunkin' Dumpty

Also, "Dunkin' Brown." Fall onto one's own poop after excrement. First recorded in 2022, this term originally had the literal meaning of “dipping into poop.” The current everyday usage, however, transfers any physical fall to various kinds of poop or vomit.

As in Ryno dunkin' dumpty himself right after I let him out in the backyard, or I don't know what to do, Caleb just dunkin' browned himself in the bathroom.

Dunkin' Dumpty by F. Jonas May 14, 2022