Place it at the peak of a bad take, then let an awkward moment sound settle the joke before cutting away. For an anime gag, follow the slap with JoJo To Be Continued to freeze the scene on the stunned reaction.
About this sound
This is a brief Goku-linked slap clip, lasting just over a second, centred on one hard smack that carries a playful cartoon punch. It feels cheeky, abrupt and larger than life, like a reality check landing in a single beat. It suits a fast, exaggerated wake-up for a character who has just said something ridiculous.