is one of the preserved throwing

Throw (grappling)

A throw is a martial arts term for a grappling technique that involves off-balancing or lifting an opponent, and tossing them to the ground in Japanese martial arts referred to as nage-waza, 投げ技, "throwing technique"...

 techniques,
Habukareta Waza, of Judo

Judo

is a modern martial art and combat sport created in Japan in 1882 by Jigoro Kano. Its most prominent feature is its competitive element, where the object is to either throw or takedown one's opponent to the ground, immobilize or otherwise subdue one's opponent with a grappling maneuver, or force an...

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It belonged to the fourth group, Dai Yonkyo, of
the 1895 Gokyo no Waza lists.
It is categorized as a rear sacrifice technique,
Ma-sutemi

Judo technique

This page is a list of judo techniques. There are a variety of techniques recognized by Kodokan judo and other budō . Below is a partial list, organized by technique type and alphabetically within type....

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Technique Description

As the opponent shoots in and grabs a double leg take-down, the defender goes over the shoulders and arms and locks his/her opponents body. The defender, while still holding the body lock tightly, then drops his/her weight down and backwards and uses the leverage from the body lock to fling the opponent behind the defender onto the opponents backside in one fluid motion. You can maintain the body lock all the way through to achieve a mount position.