Grito susto is Portuguese for a frightened scream, and clips like this circulate on soundboards as a ready-made reaction for pranks, horror edits, and Halloween videos. Because the sound is short and instantly recognisable as fear, creators can drop it into a quiet moment without needing dialogue or explanation. It sits alongside other short shock cues such as the vine boom sound, and it keeps being reused because a sudden human scream still startles viewers faster than music or a visual effect alone.