The rooster crow has been used for decades in cartoons, films and radio as instant shorthand for morning on a farm, long before meme soundboards existed. Online, the exaggerated kakarakaaaa version became a staple because it does the joke without any setup or dialogue. Creators drop it over sleeping characters, time lapses ending at dawn, and real roosters filmed at sunrise. Its appeal is timing and recognition, everyone knows what it means in half a second, so it works for pranks, alarms and edits across languages.