by Yung beast & Licia January 1, 2010
'Deficient' - missing. Someone being diffy something will have lost of misplaced it. Usually a term related to and used by the British Army.
by reme_critter July 18, 2011
by ShelbyxTaylorrrr July 11, 2008
Adjective; a nickname or word used to describe a very adorable but stubborn boyfriend who knows his amazing girlfriend is right but is always being difficult at realizing this fact.
Girlfriend: Hey Baby! Look at this puppy it's so cute can we keep it?! I wanna name it Tyra <3
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.
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.
by Diffyluver69 April 30, 2012
DIFFY: : lacking needful or desirable substance : weak, ineffectual.
Another word for: Retarded, Lame, Dumb, Boring, Stupid.
Another word for: Retarded, Lame, Dumb, Boring, Stupid.
"Hey, dude. You going to Nate's party tonight?"
"I don't know, ,man. Last time I went over there it was pretty 'Diffy'."
"I don't know, ,man. Last time I went over there it was pretty 'Diffy'."
by Metal Metal Rob Walsh August 28, 2010
by Stephro February 23, 2009
A diffy is a term people use when they are high on drugs (any kind) an have a sudden urge to lick a butthole.
by Barstars905 July 17, 2016