In the Overhead Squat you press the weight above your head, then hold it there while you squat. Works the arms, shoulders, legs, and core. Today was 5 sets of 5 reps. Poundage was 95, 115, 125, 125, 135.
Heh. I've occasionally gotten odd looks for many of my lifts. My "Bad Baggage" workout (Farmer's Walk + Suitcase Deadlift) never fails to puzzle people.
But the only time I've gotten a notably weird reaction to the OH Squat was when a trainer looked me up and said, "You know, you can strain your back that way." Apparently the idea of squatting with a weight overhead just never occurred to her.
Give it a try. It's a completely different way to do a squat.
Well, you don't have to clean it. You can put it on a power rack and take it off at shoulder height. You can get it overhead any old way you like - jerk, push press, whatever. So if you can get 75lbs up there, then you could squat with it.
The main thing to remember is that you'll have a longer "lever arm" than you're used to. That means that your abdominals and spinal erectors will carry a heavier load than in a regular squat with the same weight.
My advice would be to start with a weight that you know you can clean, but put it on a power rack. If you have to use a bar too short for the rack, then go ahead and clean it. Then press it and see how that feels for squats. Work your way up from there.