(often attributively) A robbery where a window of a shop or other premises is smashed and items are grabbed as quickly as possible.

To perform a smash and grab.

(idiomatic, transitive, intransitive) To destroy, or be destroyed by smashing. / (idiomatic, transitive) To injure or maim

(transitive) To cause to fall down and break by hitting it hard. / (intransitive) To fall heavily.

plural of keyboard smash

(Internet slang) A seemingly random and unintelligible string of characters, as produced by smashing a keyboard.

plural of smash product

(mathematics) For two pointed spaces (i.e. topological spaces with distinguished basepoints) X and Y, the quotient of the product space X × Y under the identifications (x, y₀) ∼ (x₀, y) for all x ∈ X and y ∈ Y; usually denoted X ∧ Y.

(film, television) An abrupt cut from one scene to another without a transition.

plural of smash cut