Place it at the end of a short teasing exchange, just after the stretched name, then follow it with goofy ahh sounds for a bigger reaction before cutting to the next scene. If the moment needs a second stretched reply, add the Faaah meme sound after it instead of repeating this clip.
About this sound
This is a very short processed vocal clip, lasting just over half a second, built around a stretched 'akaaa' sound that repeats in quick, broken bursts. It feels silly and deliberately awkward, like someone stretching a name out for comic effect, and it lands best as a sudden, unexpected interruption rather than a line anyone would take seriously.