Nathan Vandergunst (born 29 June 1999), known professionally as Acid (pronounced as ['eɪsɪd]), is a Belgian YouTuber.

[3] In June 2023, Acid sparked controversy by publishing a YouTube video that revealed the names, photographs, and occupations of certain members of the Reuzegom student club.

Just days earlier, several Reuzegom members had been convicted by a Belgian court for their involvement in the 2018 death of fellow student Sanda Dia during a hazing ritual.

[6] Subsequently, Acid was sued in criminal court by a restaurant owner for harassment, slander, libel, defamation, discrimination and cyberbullying.

He started a crowdfunding campaign to cover the fines, damages, and legal costs, raising €160,000 within a few days.