A fattening food that makes you happy when you eat it.
or
Food that makes fat people euphorically happy.
Potato chips are my fatnip.
by Gab & Christian June 16, 2009
Some unlucky guy who is considered the catnip for fat chicks. Obesity chases him as if he were chocolate cheesecake.
Those bitches smelled fatnip the second that they walked in and plowed right through us to get to my poor boy Steve.
by HFP March 16, 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.

×