smash and grab

Short definition from Wiktionary

Noun

1. 1
   A robbery where a window of a shop or other premises is smashed and items are grabbed as quickly as possible.
2. 2
   An act of theft, appropriation, or other form of gaining advantage at another's expense that is done quickly and audaciously.
3. 3
   Alternative form of smash and grab.

Verb

1. 1
   To perform a smash and grab.