cocksucking adjective 1noun 1 adjective1 •(vulgar, offensive) Used as an intensifier for something objectionable.“Twenty-five goddamn cocksucking years,” the old man said. — 2010 noun1 •(vulgar, offensive) Fellatio.Anita Bryant says that cocksucking is a form of human cannibalism; she decries the loss of the child that is the sperm. — 2011