Top Definition
The small portion of fat below a man's belly-button which is pushed upwards and outwards due to a tight belt.
"Putting my socks on takes much longer than it is supposed to, I need to do something about my fubnunny interference."
by Munnster11 August 10, 2007
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.

×