The kkkk spelling comes from Portuguese online laughter, similar to hahaha in English, and short reaction laughs like Gabriel's circulate widely as soundboard clips and WhatsApp audios. With no clear original show or film behind it, the sound spread because the person's name and the exaggerated laugh made it easy to search, share and reuse. Creators keep using it as a universal signal for finding something absurdly funny, especially in meme edits, reaction videos and casual chats where a typed laugh would feel too flat.