Alternative spelling of smash-mouth

Violent; aggressive; vigorous.

(informal) A particle accelerator.

(idiomatic) Ruined; bankrupt. / (idiomatic) completely, to the point of destruction.

plural of atom smasher

(programming, informal) To corrupt the call stack, causing execution to jump to a random address, sometimes used as a malicious attack on a system.

plural of smash and grab

(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.

In a smashing way.