As a Noun:
1. A situation in which someone is threatened with a weapon in order to make them hand over money. English = hold-up, stick-up, (armed) robbery.
As a Verb or Adjective:
1. To threaten someone with a weapon in order to make them hand over money. English = hold-up, stick up, rob (at gun point).
2. To draw pistols out of their holsters in order to threaten, challenge or shoot someone.