What is "brainbuster"

n. A wrestling move in which the wrestler drops the opponent on the head to the mat.

A brainbuster is a professional wrestling throw in which a wrestler puts the opponent in a front facelock, hooks their pants or thigh, and lifts them up as if they were executing a vertical suplex. The wrestler then falls onto their back so that the opponent lands on their head while remaining vertical. This move is a version of the DDT. In Japanese puroresu, the term "brainbuster" refers to a regular vertical suplex, while the move elsewhere known as a brainbuster is referred to as a "vertical drop brainbuster". Dick Murdoch is credited with the move's innovation, although it was taught to him by Killer Karl Kox.