[2] Other senses that appear to derive from the same origin include that of a valve or tap for controlling water flow in plumbing, and the hammer of a firearm trigger mechanism, both of which allow for semantic similarities to acts involving the penis.
[2] "Cock" has given rise to a wide array of derived terms, such as "cockhound" for a promiscuous male, "cocksucker" for a person who performs fellatio on a man (or "cocksucking" for the act itself), and "cocktease" for a person who sexually arouses a man without providing sexual release.
[4][5] Social research has documented norms among male peer groups that view "cockblock" behavior as negative, which may make men less likely to challenge each other's behavior or impede sexual access to women, sometimes even in cases of possible sexual assault or intimate partner violence.
[6][7] The term appears to date at least to 1972, when Edith Folb documented its use by urban Black teenagers in the United States.
[12] Carlin also noted in his comedy routine that the term was not used with respect to the practice of fellatio by females, stating: "For some reason, now cocksucker means bad man.