1 definition by hairy hair
The odd man out. When a ratio of girls to guys is unfavorable to the men, one person is designated omo and does not get any action.
Paul: yo theres gonna be 5 guys but only 4 girls.
Teddy: that means we need an omo.
Bryan: i'll take the responsibility.
Teddy: that means we need an omo.
Bryan: i'll take the responsibility.
by hairy hair July 26, 2006