1 definition by Sam Fenderson

Top Definition
the penis is removed from vigourous vagina penetration and inserted into the oral cavity and ejaculation ensues, followed by a swift blow to the throat, causing the recipiant to spit up the oral contents.
mary: if you behave yourself at the christmas party i will let you perform a spitnum!
henry: this is shaping up to be the best christmas ever!
by Sam Fenderson September 16, 2008

The Urban Dictionary Mug

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

Buy the mug