When someone gives a blowjob to another person while that person is taking a shit.
Joe was so happy when Laurie lost the bet and had to give him a Turdunkin, with no courtesy flush, when they returned home from eating Mexican food.
by Joetattoo January 7, 2020
Get the Turdunkin mug.
When one dunks their tongue inside anothers anus.
by Turdunkinhinds October 31, 2013
Get the Turdunkin mug.