The exact origin of this gulping clip is not documented, but it spread through meme soundboards and short video edits where exaggerated drinking and swallowing noises became a shorthand for suspicion. Online creators group it with other goofy ahh sounds because the performance is deliberately over the top rather than realistic. The sussy label comes from slang for suspicious behaviour, which explains why the clip is paired with side eyes, frozen smiles and characters caught wanting something. Its short length makes it easy to reuse as a repeatable punchline.