Glossary /// Alias
Spinal lock defence
Also known as Twister Escape — the canonical term used on this site.
Descriptive — the safety category the twister belongs to
Spinal lock defence names the twister by its category rather than its shape, marking it as a submission that loads the spine rather than a limb.
Etymology. The category label matters because it carries the safety framing. Several rulesets ban spinal locks outright, and those bans are information about the mechanism rather than bureaucracy.
Mechanics. Torsional load distributes across many vertebral segments instead of concentrating where it can be felt, so the warning is diffuse and arrives late. That is why the guidance is to tap on recognising the position rather than on judging the sensation — the position tells you more than the feeling does.
Cross-reference. “Guillotine (wrestling) defence” is the folkstyle name. Full escape coverage on Twister Escape.