The line comes from Chappie, the 2015 science fiction film about a police robot who gains consciousness and learns about the world like a child. In the Spanish version the phrase y tú eres mi amigo captures his innocent way of forming bonds. Short clips from the film later circulated on soundboards and in meme edits, where this fragment was isolated for its sincerity. Its extreme brevity helped it spread as a quick reaction sound, reused whenever creators needed an instant, childlike declaration of friendship.