transitive. To practise fellatio or cunnilingus on or with (a person). Also intransitive.

intransitive. slang (originally U.S.). To perform oral sex (on a person).

transitive. To perform oral sex on (a person, originally esp. a man).

U.S. slang. To practise fellatio or cunnilingus on (a person). Cf. to eat pussy at pussy, n. 3a. Also used absol.

transitive and intransitive. slang. To practise fellatio or cunnilingus (on).

(See quot. 1960.) With person or part as object. Cf. sense to suck off at phrasal verbs 2 below. coarse slang.

transitive. slang. To practise fellatio or cunnilingus on. Also occasionally intransitive.