Alias · Sweeps
Underhook butterfly sweep
Also known as Butterfly Hook Sweep — the canonical term used on this site.
Butterfly sweep driven by the underhook
Underhook butterfly sweep is a descriptive name for the butterfly hook sweep — foregrounding the underhook that the classic sweep relies on.
Etymology. “Underhook” names the controlling arm under the opponent’s armpit; “butterfly sweep” names the reversal. The label emphasises the upper-body grip over the hooking leg, where “hook sweep” names the leg.
Mechanics. The sweep removes the opponent’s base on the underhooked side: the hook lifts the leg while the underhook drives their weight past the support they have left, so they topple toward the side where their base has been taken rather than being muscled over.
Cross-reference. “Basic butterfly sweep,” “Hook sweep,” and “Elevator sweep” are sibling aliases. Full mechanical coverage on Butterfly Hook Sweep.