Top Definition
The act of going from being thin and smooth to being chunky and fat like JIF peanut butter.
That girl used to be skinny, but now she's all jiffed up.
by Dzynz August 11, 2008
6 Words related to Jiffed up

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.

×