This clip is a straightforward human sound effect rather than a line from a film, show, or viral meme, and no single famous source is attached to it. That generic quality is part of its appeal on soundboards, where creators look for a clean, recognisable yawn they can drop into almost any tired or bored moment without needing context. It circulates alongside other everyday body and reaction sounds, and it stays useful because yawning is universal, instantly understood, and funny or relatable in sleep, school, work, and late-night edits.