Derived from the phrase donkey dick, a sunk dunkey is a dick so big that when one sits down to take a shit, it sinks to the bottom of the toilet.
by Leif Thomas November 11, 2008
Get the sunk dunkey mug.Farting with full knowledge that it could cause you to crap your pants. This has a 1 in 12 probability of occurring. If you roll snake eyes, you just shit yourself.
Sharron was terrified beyond belief standing at the alter. It wasn't the commitment... she was rollin the dice.
by Leif Thomas December 09, 2008
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