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2.
Peckham slang most notably used by the rapper Giggs, meaning to wear all black, A reference to daffy duck's black feathers.
So who got ya? did ya see em?

nahh, they was all daffy'd up an shit!!
by hoodstar197 April 08, 2009
 
1.
to wear all black clothing
'all my my crew daffy'd up'
by KROOK 1 April 10, 2009