ADD stands for Attention Deficit Disorder. It is characterized by having difficulty focusing on one specific task. Instead, the afflicted is paying attention to multiple activities as opposed to one.
(For more information, go to: nami.org or mayoclinic.com.)
(For more information, go to: nami.org or mayoclinic.com.)
Billy can't focus on the teacher's lecture, and is instead watching the clouds, listening to the girl next to him blow bubbles with her gum, and imagining the sky purple. This is because he has ADD.
by Lilya_Well_Sibling_Syndrome July 11, 2009

Term used in large-scale internet role playing type games (MMORPG's). Short for additional. Denotes the arrival of an "add", or additional NPC character, usually one that has entered "aggro range" and joined the current fight.
by Erik Jacobson May 22, 2005

An actual disease that some people actually have. It has become more and more popular as an adjective for when a person gets distracted or bored.
by Ashley November 25, 2006

by CallMeEmail October 21, 2009

add (Attention-Deficit disorder) is a highly contagious disease that you can get from a public toilet seat or butt sex. Symptoms; Failing to pay close attention to details, Forgetfulness, the random yalling of "Wauuuuuuuu!", Fidgeting, Leaving seat often, and Answering a question before they are finished
by Ryu Corrado December 06, 2006

To be placed on someone's "myspace" friends list, this honor is usually followed up with a posting to said person's (or entity's) "friends comments" slot.
by digiliving March 13, 2007
