look up any word, like sparkle pony:
 
1.
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
 
2.
the state of being mel gibson
mel gibson your DAFFY!
by daveistheman July 05, 2005
 
3.
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
 
4.
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
 
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
 
6.
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