A Gamma Male is the third step down in the hierarchical taxonomy of the male sex, directly below a Beta Male and fathoms below an Alpha male. A Gamma Male unconsciously adopts or duplicates female behaviors, values, or expectations in the hopes of winning female admiration. He does this because he is too paralyzingly timid to attempt to directly win the affections of female through the Alpha Male traits of confidence and swagger.
The Gamma Male never appears confident or comfortable with whom he is. In a relationship with a female, he acts like one of her girlfriends. Further, the Gamma Male is wont to show his "feelings" in a cringe worthy manner, bringing audible sighs of shock and disgust from even the most unassertive and passive Beta Males. In comparison to other males of higher evolutionary development, he is a pitiful creature.
You know that screaming queen on 'The Bachelorette' who went and got a tattoo of a heart and a shield on his wrist to profess his undying devotion to the girl he had only known for a few weeks? Yeah, total Gamma Male.
Male who avoids pack mentallity; also applies to females (Gamma Female)
That man (or woman) is an enigma; he/she just does his/her own thing—definetely a Gamma Male/Female
The third and lowest tier of male social hierarchy. Unlike the dominant alpha or the passive beta, the gamma male's hallmark traits are clinginess, possessiveness, and manipulation. Since he is unable to compete with men above his social tier, he is prone to isolating and manipulating girls, and failing that, throwing guilt trips to keep them on a short leash. While a gamma male is often a self-proclaimed "nice guy", his benevolence is merely a means to an end, which is usually trying to hook up with a girl he is obsessed with. Overly emotional and prone to feelings of unwarranted entitlement, the gamma male would rather blame all of his problems on other people than take responsibility for his own behavior. A truly worthless human being.
"God, your ex-boyfriend is super needy. He's a total gamma male."