The phrase itself is the hook: an otter's wallet is an unexpected, slightly absurd image, and that strangeness is what makes the short clip shareable in short-form edits. Online, it circulates as a brief spoken gag rather than as part of a well-known scene, so creators tend to use it for its wording and timing instead of recognition. Its appeal is in the mismatch between a mundane object and an exaggerated wetness comparison, which gives editors a quick, self-contained punchline for messy or rainy moments.