The clip is linked to Fall Out Fall In, the Donald Duck wartime cartoon released on April 23, 1943, when Donald endures basic training and barracks life in the United States Army. Snoring gags were a staple of that era of animation, exaggerated until a sleeper sounded mechanical, and this short burst survives as a library style cartoon effect. Online editors keep reusing it because the rhythm is instantly readable without any setup, letting a single snore signal exhaustion, boredom or a soldier knocked out cold after duty.