Top Definition
Smegadon is the build up of smegma on a mans penis in jurassic proportions.
Girl: Tonight is your luck night big boy.
Boy: (pulls down pants)
Girl: I no longer wish to give you a blow job as it seems you have a large Smegadon residing on the end of your penis.
by crabstein December 06, 2008
Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×