Little is known about a single original source for these pkh sounds, and the clip is best understood as a compilation of a common vocal reaction rather than a line from one show or film. Similar breathy puffs circulate widely in Russian-language memes and short-form videos, where creators reuse them as a shorthand for disbelief, dismissal, or comic discomfort. Because the sound needs no translation, it travels easily between edits, and its continued use comes from that flexibility: the same short burst can read as annoyed, sceptical, or simply playful depending on the clip around it.