Aspheera was introduced in LEGO Ninjago season 11, Secrets of the Forbidden Spinjitzu, in 2019 as an ancient serpentine queen imprisoned for a thousand years. Her entire story is driven by revenge against Master Wu, who banished her when he was young, so the word became her signature cry in the show. Clips of that drawn out shout were lifted from the series and shared on soundboards and in meme edits, where the single word now stands in for any overdramatic vow of payback, long after the episode aired.