Like many ultra-short Spanish audios, 'es mi perro, abuelo' spread through meme pages and short-form video rather than a single identifiable source, with no confirmed original video, character or year attached to it. Its charm is its universality: almost anyone with a dog has had the moment of proudly showing the pet to a relative. That relatability turned the line into a reusable reaction sound for pet content, duets and wholesome edits, where it still appears whenever creators want a quick, affectionate laugh.