1 definition by Rase

Attention Deficit Disorder = 'Behavioral syndrome in children, whose major symptoms are inattention and distractibility, restlessness, inability to sit still, and difficulty concentrating on one thing for any period of time.' - encyclopaedia britanica.
In urban use can refer to anyone who's behaving hyper or getting easily distracted.
1) John's so A.D.D.!

2) I told him 'dude you gotta calm people'll think you're A.D.D.!'
by Rase December 19, 2005
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