One of the classic judo throws. Rodrigo had us work the combination ankle pick/uchi mata during Thursday night's training. It's a really nice one-two: if the guy takes the step when you drag him with the collar, then go for the ankle pick. If he hangs back and stays defensive, step in with the skip pivot and throw the uchi mata.
I've always been a little intimidated by the uchi mata, thinking that it was another "tall guy" throw. But Karo Parisyan is a pretty stock guy and loves the uchi mata. So it's probably time I gave it a second look.
Here are some uchi matas in judo competition.