Alias · Armbar
Arm crush
Also known as Inverted Armbar — the canonical term used on this site.
Training background: Informal term — emphasises the compressive element in the chest-fulcrum variant
Inverted armbar — attacks the elbow in supination with the arm rotated so the elbow faces upward; the attacker's chest or shoulder is the fulcrum. Entries from half guard top and closed guard top.