That's a Joke is a track by American rapper NF, released in 2021 and built around a confrontational chorus aimed at critics and doubters. The song gained traction beyond NF's core audience as short clips of its hook began circulating in TikTok edits, reaction videos and gaming montages, where its tense delivery matched ironic or defiant moments. It remains popular because the chorus is instantly recognisable, easy to cut to a reveal, and carries the artist's signature intensity without needing the full song.