Entry 1 sense Webster, 1913 blowjob · blow·job · IPA /ˈbloʊ.d͡ʒɑb/ 01 n. An act of fellatio, a form of oral sex; -- a slang term. See blow{11}, v. i. 1. An act of fellatio, a form of oral sex; -- a slang term. See blow{11}, v. i.[Vulgar slang] See: fellatio, blow Syn. cock sucking.