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.)
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.
Get the ADD mug.
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.
"Shit, add"
*group dies*
by Erik Jacobson May 21, 2005
Get the Add mug.
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.
"Woah, I just got ADD"
"Yeah, I'm so ADD right now"
"... Die."
by Ashley February 27, 2005
Get the ADD mug.
"Hey, dude. Can I grab some adds from you this weekend?"

"Dude, sure, let's do some adds."
by CallMeEmail October 19, 2009
Get the Adds mug.
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
"don't give Ryu that chainsaw he has mad crazy add"
by Ryu Corrado December 3, 2006
Get the add mug.
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.
Hey, thanks for the add... Tom is no longer my only friend on myspace.
by digiliving March 12, 2007
Get the add mug.