Alias · Guard Passing
Double under stack
Also known as Double Under Pass — the canonical term used on this site.
Names the grip and the stack together
Double under stack is a descriptive name for the double under pass — combining the grip, both arms under the legs, and the stack it creates into one label.
Etymology. The compound spells out both halves of the technique: “double under” names the arm position, “stack” names its effect. The term has no specific lineage — it is plain mechanical description used across passing systems.
Mechanics. The double-under control folds the opponent up and carries directly into the pin: the same grip that stacks the hips is the grip that holds the finished pin, so passing and pinning are a single continuous task rather than two separate phases.
Cross-reference. “Stack pass” is a sibling alias. Full mechanical coverage on Double Under Pass.