The huehuehue laugh started as Brazilian internet slang for a cheeky laugh, born in gaming culture and spread through international meme communities in the 2010s. It eventually reached the Anime side of the internet, where meguca communities picked it up for Madoka Magica edits and ironic reaction posts. Today it works as a universal signal of playful mischief, recognisable even to people who have never seen the anime. Creators keep using it because a single giggle delivers the whole joke: somebody is up to no good.