Okuri Ashi Barai

Tori sweeps both of uke's feet in one motion, catching the trailing foot as it slides toward the lead foot during a sideways shuffle. Contact is low at the ankles, the sweep travelling in the same direction uke is already moving so their feet are swept out from under a laterally-shifting body. Timing is even tighter than de-ashi-barai - the sweep lands in the instant both feet are unweighted mid-shuffle.