look up any word, like tribbing:
 
1.
The name of my badass dog
Hey Deefer Dog your cool
by sephgordgon January 26, 2010
 
2.
deefer a massively obese man who cant fit in the car.
"My dad is such a deefer it's rubbing off on my mom."
by Jessicca January 04, 2006
 
3.
one who wears a hat on one's head
that kid is a deefer
by jimmers jim December 26, 2006