"What It Is (Block Boy)" is a song by American rapper and singer Doechii, released by Top Dawg Entertainment and Capitol Records on March 17, 2023, as a non-album single. The original features American rapper Kodak Black, but a solo version, without Black, was released simultaneously. Six variations of the track were released, which include sped-up and slowed-down versions. Produced by J. White Did It and Brian Kennedy, it is Doechii's first single to enter the Billboard Hot 100, peaking at number 29, and also her first top-40. It also reached the top 10 in Malaysia and the Philippines.