Place it as the final beat of a short exchange, then follow it with Bruh for a deadpan reaction or Emotional Damage when the refusal needs a bigger payoff. Keep Ben closing the joke so the edit ends on him.
About this sound
A short two-second clip of Ben, the grey dog from the Talking Ben app, chanting na na na na in a low, mocking singsong voice. It feels teasing and dismissive, like a playful brush-off that lands as a joke rather than a real argument. The repetitive chant makes it instantly recognisable as Ben's stubborn refusal to engage.