Top Definition
the oil produced by a butt in order to pass a large poo. Often used as an insult to ones intellegence.
OMG you dump oil! I can't believe you just sent your bank account info to your online girlfriend!
by Kitalpha January 27, 2010

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.