Mr. Catra, born Wagner Domingues Costa, was a leading figure in Brazilian funk carioca known for his deep voice, humour and distinctive laugh. Recordings of his interviews and performances circulated widely in Brazil, and short clips of his laughter were shared as reaction audio on social media and messaging apps. After his death in 2018 his voice remained part of Brazilian internet culture, with this laugh continuing to appear in memes, edits and compilations as a shorthand for finding something hilarious.