When you are driving or riding down the street and see a good looking woman from the backside. This includes, but not limited to, great ass, nice legs, female gate, full bouncy hair. Sadly upon inspection of the front end you find a beard or nicely trimmed mustache. A terrible trick that god decides to play with the human form.
Hey man slow down that chick has a nice ass. Oh wait, there's a beard! It's a Mustachio Buttcakes!
by buckydelarocha April 29, 2015
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This is when a woman shits in a paper muffin cup and her partner cums on it. They both eat the delicious baked good together. Sometimes, if it is the right time of the month, the woman may add some of her menstrual blood to make a pinkish frosting, mixed with the man's ejaculatory juices. It is also likely that the fresh poop will be hard to eat, so it is common for the muffin to be cooled in the refrigerator so it can harden a little. No one has ever actually tried to bake this concoction before, and it is not suggested to do so, and may result in the oven having to be replaced.

It may also be known as a butt muffin, chocolate truffle, or butt cake.
Man 1: Me and Sheila did some delicious baking last night.
Man 2: Oh yeah, what'd you bake, some buttcake cup muffins?
by Rod Weedan April 20, 2008
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Why did you even search this up?
Your a buttcake.
by purplewarrior:) October 24, 2020
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A noun used to describe someone who's both delicious and full of shit.
OMG Becky, that Ronda girl is such a buttcake! You better keep a distance from her!
by TittyClashXOXO March 4, 2016
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