In judo, is a hand throwing technique (te-waza) that counters an uchi mata attack. The tori steps aside so the uchi mata misses, then throws the uke forward. The Kodokan adopted uchi mata sukashi as one of several shinmeisho no waza ("newly accepted techniques").
See also List of judo techniques List of Kodokan judo techniques
References
External links Video of uchi mata sukashi and other techniques recorded at the World Judo Championships in Munich, 2001. Uchi-mata-sukashi Kodokan demonstration video in youtube.