Top Definition
This is a pseudo-medical procedure in which a male vertebrate from the phylum chordata inserts his phallus into a complimentary female's vagina.
Dude, I had to perform a slipendictomy on this girl today, she was alright.
by Weiping February 09, 2007

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To stealthily insert one's member into one's partner's orifice, typically occurring in the morning.
I woke up with a raging boner and only 20 minutes to get ready for work. Foreplay would take too long and waking my partner would be bothersome. If I was to deswell my throbbing member, it was critical that I perform the slipendictomy quickly.
by Meatymuff January 27, 2016

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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.

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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