Short utility sounds like this spray hiss come from game sound design, where healing items need instant audio feedback that players can recognize without looking. A pressurized first aid spray became a standard cue in shooters and survival games because the noise is distinct from eating, drinking, or bandaging. Online, editors lifted that same game logic for memes and real-life clips, using the hiss whenever someone patches themselves up, sprays something, or pretends to heal after an embarrassing fail.