A label used at the University of Southern Maine to describe someone who just isn't right in the head. This term comes from the fact that many of these people sit on the left side of the cafeteria. Many freshman are wrongly called this name because they do not know better: they tend to figure this system out fairly quick.
Joe: man, that guys just not with it is he?
Pete: what do you expect? he's a regular left-sider.
Joe: Ahhh, makes more sense now.
Pete: what do you expect? he's a regular left-sider.
Joe: Ahhh, makes more sense now.
by huskybuck October 31, 2010
Left-sider is a term used at the University of Southern Maine by "right-siders" (those who sit on the right side of the cafeteria). According to the "right-siders", sitting on the left-side supposedly is a big taboo in terms of social status. The right side for the most part is occupied by jocks, ROTC members, Fraternity boys, Sorority girls, and those who spend way too much time worrying about their social status. One can only wonder if those who sit on the right side have anything better to do with their lives other than coming up with stupid labels and quasi-discriminatory terms. This is college, not high school... so grow up!
Right-sider: All the kids who sit on the left side are weird... those left-siders are losers!
Friend: Dude... really? Grow up, this isn't high school.
Friend: Dude... really? Grow up, this isn't high school.
by usmGaysian November 22, 2010