A submission hold in wrestling where the attacking wrestler stands behind the opponent who is either sitting or lying face down, then pulls the opponent into an inverted facelock, often hooking the opponent's near arm with their free arm. The attacker then pulls backwards and up, wrenching the opponent's neck and spine. If the opponent is sitting, the wrestler can press their knee into the opponent's back, adding pressure.
It is innovated by Fujinami Tatsumi and popularized in the United States by Ultimo Dragon.
There are other variations of this hold:
1) With body scissors added to further restrain the opponent. Used by New Japan Pro Wrestling wrestler SANADA as the Skull End and WWE wrestler Drew Gulak as the Gu-Lock.
2) A version from a back-mount position. In other words, a hybrid with a camel clutch. Used by Low Ki as the Dragon Clutch, All Elite Wrestling wrestler Malakai Black as the Owari Death Clutch, Dragon Slayer or Dark Ritual, and Tokyo Joshi Pro Wrestling wrestler Tatsumi Rika as the White Dragon Sleeper.
3) A standing variation. Used by The Undertaker as the Takin' Care of Business.
4) A transition from a surfboard position. Used by All Elite Wrestling wrestler Bryan Danielson as one of his signature moves.
