No single source clip has been widely credited for this sound, so it circulates mainly as a short user-shared meme audio rather than a line from a known film or show. Its appeal is the elongated whaleeeee, which is easy to recognise even without context and easy to drop into short-form edits, reaction videos and gaming clips. Because the phrase is simple and the delivery is exaggerated, creators reuse it as a running joke for anything oversized, unexpected or deliberately silly, keeping it alive through repetition rather than through any original scene.
About this sound
A short meme clip of someone shouting this is the crazy whale with the final word stretched out, used for absurd reveals and over-the-top reactions in edits.
The clip is a single excited voice announcing this is the crazy whale, holding the last word until it wobbles into a long, silly whaleeeee that sounds half shout and half cartoon animal call. The delivery is loud, breathless and deliberately over the top, with the stretched ending doing most of the comedy work. Played over an otherwise ordinary moment, it turns something small into a ridiculous spectacle, making viewers expect a huge reveal and then laugh at how unserious it actually is. Its charm comes from that mismatch between the dramatic build-up and the nonsense payoff.