Omega is the last letter of the Greek alphabet, while alpha is the first.
omegamale (pluralomega males)
- A male who is the lowest in a social or group hierarchy; asubordinate male.- 2004, Joseph Carroll,Literary Darwinism: Evolution, Human Nature, and Literature, page140:- […] but he still does not find her feeling for theomega male convincing. 
 
 
- 2007, Robert T. Tauber,Classroom Management: Sound Theory and Effective Practice, page98:- What might be overlooked in this wolf pack/classroom analogy is that where there is an alpha male (the wolf with all the power), there also is anomega male (the wolf at the bottom of the pack with absolutely no power). 
 
 
- 2011, Anne Innis Dagg,Animal Friendships, page86:- Kamots (named in Blackfoot for "freedom") was the alpha male, dominant to all other pack-mates, and Lakota (named ironically with the Sioux word for friend, when he was to have so few) theomega male, subordinate to all males including the cubs as they grew to adulthood.