cock gobbler

A word with several senses: primarily, someone who gobbles or eats greedily; also an informal name for a male turkey (named for its gobbling call); and, in crude slang, a term for someone who performs oral sex. Context determines which sense is active. The turkey sense is probably the most encountered in everyday American English.

(vulgar, slang, rare) fellator, someone who performs fellatio.

(slang, vulgar, derogatory, offensive) a contemptible person.

Crude British slang for performing fellatio, derived from 'gobble' — to eat greedily or noisily — applied as a vulgar metaphor for oral sex on a penis. The term is blunt and explicit, more likely to appear in adult comedy, explicit fiction, or frank casual conversation than anywhere polite. 'Gobble' has been used as slang for oral sex in British English since at least the mid-twentieth century.