n. A rough, noisy sound made by breathing forcefully through the nostrils, as a horse or pig does.n. A similar sound: the snort of a steam engine. n. Slang A drink of liquor, especially when swallowed in one gulp.n. Slang Cocaine or heroin, especially a small amount sniffed at one time.n. Slang The liquor or drug so taken.verb-intransitive. To breathe noisily and forcefully through the nostrils.verb-intransitive. To make a sound resembling noisy exhalation: "The wind snorted across the Kansas plainsā ( Gail Sheehy). verb-intransitive. To make an abrupt noise expressive of scorn, ridicule, or contempt.verb-intransitive. Slang To ingest a drug, such as cocaine or heroin, by sniffing.v. To express by snorting: He snorted his disapproval. v. Slang To ingest by sniffing: snorted cocaine.