Mr Frundles originated in the animated series Rick and Morty as a small alien creature whose cheerful self introduction hides how quickly and dangerously he can spread. The joke became a standalone meme because the line works without context, sounding like a proud name reveal for something clearly wrong. Short clips of the moment circulated in edits, soundboards and reaction videos, where creators use it to label chaotic pets, strange edits and characters who arrive with far too much confidence for the trouble they are about to cause.