Definition of doorbuster in English:

doorbuster

Syllabification: door·bust·er
Pronunciation: /ˈdôrˌbəstər
 
/

noun

US informal
1(In retailing) a special discount price available for a limited period, typically during special early-opening hours.
More example sentences
  • Others are using so-called doorbusters - deep discounts on a few popular items for just a few hours.
  • As I mentioned the first time, though, this works only if your doorbuster is a computer.
  • It also plans to use virtual doorbusters to draw people to its site next week.
2A firearm with special attachments for forcing entry through a door.
More example sentences
  • When player #2 powered up her doorbuster, the doors responded and parked themselves fashionably open.

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