its when your with a couple of friends and everybody walks away from the person in the middle so that that person is with nobody and they are a loner. then you yell, LONER!
by INDIA!!!67684704 May 9, 2010
Same thing as ownage and pwnage. It means that you defeated someone really badly in a video game or that you are really good.
by Andrew Gower January 22, 2008