Top Definition
substance a young child cheerfully picks out of his father's belly button
Junior, I've got a present for you - some gradu in my belly button.
by Tipper Booty April 18, 2008
Gradu (pronounced gra-DOO) = Any unwanted substance. There are two types:

1. Specific gradu: You know what it is (e.g., the brown residue that is left at the bottom of your coffee cup after you have been gone for a few days ... It's dried coffee!)

2. Non-specific gradu: You don't know what it is (e.g., the round, wrinkled, grayish fuzz-covered object you find in your vegetable drawer after being gone all summer).

Man, that was some gnarly gradu somebody left under the couch; it trapped all the dust bunnies! Yuck!
by oroboros December 17, 2007
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.