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
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.