transitive verb1 a: to fling or heave continuously about, to and fro, or up and down <a ship tossed by waves>b:bandy 2 c: to mix lightly until well coated with a dressing or until the elements are thoroughly combined <toss a salad> 2: to make uneasy : stir up :disturb 3 a: to throw with a quick, light, or careless motion or with a sudden jerk <toss a ball around>b: to throw up in the air <tossed by a bull>c:match 5a d: to send as if by throwing <tossed in jail><tossed out of the game>e: to get rid of :throw away 4 a: to fling or lift with a sudden motion <tosses her head angrily>b: to tilt suddenly so as to empty by drinking <tossed his glass>; also: to consume by drinking <toss down a drink> 5: to accomplish, provide, or produce readily or easily <toss off a few verses> 6:throw 18 <toss a party> 7:vomit 1 —often used in the phrase toss one's cookiesintransitive verb1 a: to move restlessly or turbulently; especially: to twist and turn repeatedly <tossed sleeplessly all night>b: to move with a quick or spirited gesture 2: to decide an issue by flipping a coin