Top Definition
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.
بواسطة Diffyluver69 إبريل/نَيْسان 30, 2012

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The best friend a girl could have.
he is such a diffy, he gives the best advice!
بواسطة shelbsterTROLLOP يوليو/تمُّوز 10, 2008

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Spiffy and different
Ooh that boy mike nunn is so diffy!
بواسطة Yung beast & Licia ديسمبر/كانون الأَوّل 31, 2009

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A slang term for clostridium difficile. Clostridium difficile has a very distinct smell.
Yo, did it smell diffy?
بواسطة ludawgg1234 مارس/آذَار 12, 2015

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A diffy is a term people use when they are high on drugs (any kind) an have a sudden urge to lick a butthole.
Jones: Wow, these drugs are really making me want to do a diffy right now.
Slim: I agree.
بواسطة Barstars905 يوليو/تمُّوز 17, 2016

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'Deficient' - missing. Someone being diffy something will have lost of misplaced it. Usually a term related to and used by the British Army.
That soldier's diffy a pair of boots so he'll get billed for the loss.
بواسطة reme_critter يوليو/تمُّوز 18, 2011

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DIFFY: : lacking needful or desirable substance : weak, ineffectual.

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'."
بواسطة Metal Metal Rob Walsh أغسطس/آب 28, 2010

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The Urban Dictionary T-Shirt

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