1. Exclamation used to express joy at the fact that one's parent's facebook
account has been hacked
and utilized to denote a "favorite" child via facebook status.
2. Denigratory expression directed at fellow siblings
when they realize that you are in fact the favorite
1. facebook status reads: Kate loves Cara more than Mady
comment 1: Kate, Cara is playing with your account
comment 2: coxed!
2. To siblings: Did you see mom's fb status? You got coxed!