noun
armpit push; pushing up under the armpits
A sumo technique where the wrestler pushes upward with hands placed under the opponent's armpits, often used to break the opponent's posture or drive them back.
横綱ははず押しで相手を土俵の外へ押し出した。
The yokozuna pushed his opponent out of the ring with an armpit push.
A general pushing technique in sumo; はず押し is a specific type of push targeting the armpits.
A thrusting and pushing combination; はず押し is a more specialized upward push from under the armpits.
Compound of 筈 (hazu, 'nock of an arrow' or 'notch') and 押し (oshi, 'push'). The term likely refers to the hand position resembling the notch of an arrow when pushing upward under the opponent's armpits.