pull the trigger

verb4

1. •
   To fire a gun.
2. •
   To commit to a course of action.

   • Most surprisingly of all, the mad queen Cersei is challenged to execute both of her brothers at different moments, and she can’t bear to pull the trigger either time. — 2017
3. •
   To shoot, kick the ball in hope of scoring a goal.

   • The Baggies almost hit back instantly when Graham Dorrans broke from midfield and pulled the trigger from 15 yards but Paul Robinson did superbly to tip the Scot's drive around the post. — 2010
4. •
   (informal) To hit a very powerful shot.