The phrase positively bonkers draws on British slang where bonkers means wildly irrational, paired with a formal adverb that makes the judgment sound oddly proper. Online, the clip spread as a reusable reaction on meme soundboards and in short form edits, where creators needed a polite sounding label for total chaos. Its appeal is the mismatch between tidy wording and messy content, so it fits gaming fails, sports bloopers and everyday mishaps alike. It remains popular because it works without explanation and can be dropped into almost any absurd moment.