I'm not sure if there's even a name for this or an entry on TVTropes or something, but I always enjoy when cocking a gun or pumping a shotgun is used as punctuation (generally preceding or following a one-liner), or just for dramatic emphasis in general:
View: https://www.youtube.com/watch?v=8Cn-XtzBE74
View: https://www.youtube.com/watch?v=8Cn-XtzBE74