Tani-otoshi
(valley drop) 
"Tori steps forward with his left foot to the outside of
Uke's right, then Tori slides his right foot to meet his own left
foot.Transfering all of his weight onto his right leg Tori shoots
his left leg behind Uke's legs and with control he pulls Uke backward.
Make sure that you display to the referee that you initiated the
technique as it is hard sometimes to tell who threw who."
