ankle pick
A sumo kimarite where the attacker grabs the opponent's ankle from the outside and pulls it up, causing the opponent to fall backward.
彼は裾取りで相手を倒した。
He defeated his opponent with an ankle pick.
Compound of 裾 (すそ, 'hem' or 'lower part') and 取り (とり, 'taking'), referring to grabbing the lower part of the opponent's leg.