Ai que medo is a Brazilian Portuguese phrase used online as a comic fear reaction, shared in short videos, chats and soundboards rather than tied to one confirmed film or show. Its stretched pronunciation turned a simple scared line into a recognisable meme cue, similar in spirit to a scream meme but softer and more whiny. Creators reuse it for jumpscares, creepy images and awkward surprises, and it stays popular because the meaning is clear even to viewers who do not speak Portuguese, thanks to the trembling delivery.