O-soto-otoshi
(major outer drop)
"Tori steps out close to Uke's right side with his left
foot, transfers his weight to that foot then swings his right
leg through the gap between the two bodies lifting it high. Then
the right leg is driven back down between Uke's legs so that the
foot touches the floor and Uke's right leg crumples. At the same
time Tori's arms push Uke down and to the rear "
