Place it as the payoff after a slow build, with sudden suspense first to stretch the tension, then cut straight to it when the creature appears. Follow it with oh my god wow for a second beat of disbelief, keeping the sequence short so the reaction stays the focus.
Over dit geluid
This is a sub-second shouted exclamation, a single urgent voice crying 'Kill it with fire!' at full intensity. It lands as panicked, over-the-top disgust, the kind of instant verdict you give something revolting or terrifying before you have time to think. The humour comes from how extreme the response is compared with the small thing that caused it.