Place it at the very end of a reaction edit, after the mistake plays out in full. Pair it first with a record scratch for the freeze, then follow with the DJ Airhorn Sound Button if the scene needs an even bigger overreaction to close.
About this sound
A very short Spanish voice clip of comedian Felipe Avello snapping out the phrase 'vieja estupida' in an annoyed, dismissive tone. It lasts just under two and a half seconds and lands as a blunt put-down. The feeling is rude, funny and exasperated, like a fed-up reaction to something foolish, which is why it works as an instant insult response.