A grappling technique in martial arts such as judo and jujutsu where the opponent's leg is entangled or locked to control or submit them.
In the judo match, he applied a leg lock and pinned his opponent.
Compound of 足 (あし, 'leg') and 搦み (がらみ, 'entanglement'), from the verb 搦む (からむ, 'to entangle').