The joke rewrites Do Your Ears Hang Low, a traditional children's song and marching cadence known for generations of playground parodies. Swapping ears for balls turned it into a rude singalong that spread through schoolyard humour, forums and later short video memes. Online creators clipped the sung question on its own because the melody is instantly familiar even without the rest of the verse. That familiarity keeps the short version in regular use as a reaction sound, long after many similar novelty songs have faded from meme rotations.