Top Definition
After consuming a large meal, this act consists of taking the biggest shit of your life, which expands your asshole to the equivalent of childbirth.
Call the utilities company, I just dropped a McFetus.
by Evan, Eddie, and Kurt October 16, 2006

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The fetus of a female McDonald's employee who was impregnated while she was still on the clock.
Person 1: Did you hear about Ashley's McFetus?

Person 2: Yeah, I heard Joe, the cook, helped her make it while she worked the Drive-thru
Person 1: That McFetus has no hope.
by Hugh Jundies March 31, 2015

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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Reference to a human fetus prepared in a manner similar to fast food, such as McDonald's.

Used most often to mock abortion and stem cell debates by left leaning advocates with particular regard to those leaning to the right side of the political spectrum.
"I really could go for a McFetus, supersized!"
by Anonymous Tipster WA December 12, 2006

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt