Bugs Bunny is the wisecracking star of Warner Bros. Looney Tunes cartoons, known for outsmarting hunters, villains and rivals with a carrot in hand and a joke ready. Ain't I a stinker became one of his signature self-congratulatory lines, said after a trick had worked perfectly. Clipped from those cartoons, it spread through meme pages, reaction videos and soundboards as a quick way to claim a cheeky victory. It endures because the character, the voice and the smug punchline are instantly recognisable across generations.