Top Definition
abs that are hidden and only appear when it is necessary; in other words, an excuse for not having abs
My stomach's not squishy... there's ninja abs there!
by flowhawk22 October 09, 2010

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.

×