To break in pieces utterly and with violence; dash to pieces; shatter; crush.To render insolvent; bankrupt.To dash violently; fling violently and noisily: as, he smashed it against the wall.In lawn-tennis, to strike with much strength; bat very swiftly.Synonyms Shatter, etc. See dash.To act with a crushing force; produce a crushing or crashing.To be broken or dashed to pieces suddenly and roughly; go to pieces by a violent blow or collision.To be ruined; fail; become insolvent or bankrupt: generally with up.To dash violently: as, the locomotives smashed into each other.To utter base coin.n. A violent dashing or crushing to pieces: as, the lurch of the ship was attended with a great smash of glass and china.n. Destruction; ruin in general; specifically, failure; bankruptcy: as, his business has gone to smash.n. A drink composed of spirit (generally brandy), cut ice, water, sugar, and sprigs of mint: it is like a julep, but served in smaller glasses.n. A disastrous collision, especially on a railroad; a smash-up.To press or make (the folded and sewed sections of a proposed book) of a uniform thickness.n. In lawn-tennis, an overhand volley played hard and fast to prevent, by the speed of the stroke, a return by the opponent.