Boyfriend: No! We are not naming that dog Tyra. The only way that's happening is if that puppy is brown :)
Girlfriend: But I want a cute white puppy like this one! * shows pic
Boyfriend: no! The brown puppy or nuthin.
Girlfriend: ahhh fine you win Diffy. You're such a Diffy.
Another word for: Retarded, Lame, Dumb, Boring, Stupid.
"I don't know, ,man. Last time I went over there it was pretty 'Diffy'."