Two principal characteristics appear in the study of machismo. The first is aggressiveness. Each macho must show that he is masculine, strong, and physically powerful. Differences, verbal or physical abuse, or challenges must be met with fists or other weapons. The true macho shouldn't be afraid of anything, and he should be capable of drinking great quantities of liquor without necessarily getting drunk.
The other major characteristic of machismo is hypersexuality. The impotent and homosexual are scoffed at—the culturally preferred goal is the conquest of women, and the more the better. To take advantage of a young woman sexually is cause for pride and prestige, not blame. In fact, some men will commit adultery just to prove to themselves that they can do it. Excepting the wife and a mistress, long-term affectionate relationships should not exist. Sexual conquest is to satisfy the male vanity. Indeed, others must know of one's potency, which leads to bragging and storytelling. A married man should have a mistress in addition to casual encounters. His relationship with his wife is that of an aloof lord-protector. The woman loves, but the man conquers—this lack of emotion is part of the superiority of the male (Ingoldsby 1991b).
Most women also believe in male superiority (Stycos 1955), and they want their men to be strong and to protect them. According to the dominant cultural stereotype, a man must protect his female relatives from other men because they should be virgins when they marry. Knowing that other men are like himself, the macho is very jealous and, as a result, allows his wife very few liberties.
In summary, machismo may be defined as: "[T]he cult of virility, the chief characteristics of which are exaggerated aggressiveness and intransigence in male-to-male interpersonal relationships and arrogance and sexual aggression in male-to-female relations" (Stevens 1973, p. 315).