Someone adds your facebook, and your MSN, AIM, basically any instant messaging address so they can talk to you both ways at all times. A little creepy.
Person One: Jack Smith double added me.
Person Two: You mean facebook and MSN?
Person One: Yep..
Person Two: Thats a little creeps.
Person Two: You mean facebook and MSN?
Person One: Yep..
Person Two: Thats a little creeps.
by Erinnnnnnn June 26, 2008
 Get the double addmug.
Get the double addmug. something you say when u do something that is the stuff of legend.normally used for something you are proud off.
by turcothedestroyer July 22, 2011
 Get the add that to the resumemug.
Get the add that to the resumemug. The inability to listen to more than 20 seconds of a song on an XM channel without flipping through all the other channels to make sure there is nothing better playing somewhere else.
by SandiC March 6, 2007
 Get the XM ADDmug.
Get the XM ADDmug. by Alonymous February 22, 2008
 Get the entrepreneurial addmug.
Get the entrepreneurial addmug. A child born to keep another child from being an only child or to provide transplantable parts for an older child, especially one who would not have been conceived otherwise.
In Jodi Picoult's novel My Sister's Keeper, Anna Fitzgerald, the daughter conceived to provide bone marrow and a kidney transplant to her terminally-ill older sister Kate, is the add-on child of the family.
by JavaJaneOhio December 9, 2010
 Get the add-on childmug.
Get the add-on childmug. Person 1: yoo i hear paul and karin have sex multiple times a day!
Person 2: Ye dude i hear that, they are such add-ex.
Person 2: Ye dude i hear that, they are such add-ex.
by Papageorge P October 4, 2006
 Get the add-exmug.
Get the add-exmug. by Randumb1010101001001 November 23, 2019
 Get the ADD THIS WORDmug.
Get the ADD THIS WORDmug.