Deku is Izuku Midoriya, the earnest hero-in-training at the centre of My Hero Academia, and his name has become shorthand in fan culture for kind, awkward underdog energy. This short clip circulates as a reaction sound in that fandom, where the line about Deku not wanting the speaker is used to dramatise rejection, unrequited affection and being overlooked. Because it is brief and instantly recognisable to anime viewers, it has stayed useful in edits, memes and reaction videos long after its first uploads, especially whenever a creator wants a joke that feels both sad and self-aware.