Risadinha de ladão, literally a little thief laugh in Portuguese, circulates in Brazilian meme culture as a short reaction sound for sly, mischievous moments. It is shared in messaging chats and short-form video edits, where it is dropped over pranks, gameplay clips and everyday jokes about getting away with something. Its appeal lies in its brevity and instantly recognisable tone, which signals cheekiness without needing words or explanation. A related thief laugh variant also circulates under a similar spelling, showing how the joke has been copied, remixed and kept alive by online creators.