The origin of this clip is not documented, so it circulates online purely as a nonsense babble sound rather than a quote from a known film or show. Its appeal is the rhythm of the repeated ka and ma sounds, which listeners type out as kakamamamsmsnanan when searching for it. Short reaction clips like this spread through soundboards and reposts because they are easy to recognise from the first syllable. It remains popular for edits where a recognisable line would be too specific, but a flustered vocal noise says everything.