Waluigi is the lanky, moustachioed rival to Luigi in Nintendo's Mario games, a gleefully dishonest trickster whose exaggerated Waa sounds have become part of his identity. Fans have lifted his most theatrical lines into memes and reaction clips, where the drawn-out Waaanderful works as shorthand for smug triumph. Alongside other Mario voice clips such as Its A Me, Mario, it is now shared in edits, streams and group chats whenever someone wants a cartoon villain's celebration rather than a straightforward cheer.