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Crazy. Madly deranged and completely nuts. Foolish; stupid or mentally imbalanced.

Common british slang for daft.
Someone should tell the building super that the daffy french woman has locked the fire escapes with padlocks again.
by soma616 October 15, 2005
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2
by daveistheman July 05, 2005
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3
Absolutely and completely nuts. Crazy. Mentally ruined or imbalanced. Coined by South Park in 2004,
Whoah, that dude has lost it, that fucker’s completely daffy man!
by schweinsberg April 14, 2005
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4
Slang term for Nootropic drugs (smart drugs or cognitive enhancers). The words stems not from just a single Nootropic drug but from a broad use of the word for all Nootropic drugs.
I need some Daffy to get me through that long night shift.
Dreaming of Daffy Days to clear the work fog.
by Zyklon8 August 01, 2017
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5
A skiing trip in which, the skier while in air, folds one leg back, and kicks the other forward, and then wise versa.
"dude, I pulled a smooth daffy off that jump"
by Snips July 28, 2003
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6
The act of getting absolutely and completely plastered out of your mind. D-drunk A-as F-fucking F-fuck Y-yo. Daffy.
Last weekend my friends and I got daffy at their apartment.
by State of Dade April 19, 2010
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7
often interchanged with the word krunk; to explain something enjoyable or someone cool.
That party was so daffy!
Mary is the daffiest person I know!
by Chuck March 01, 2004
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