No, you never want to stick your butt "out" when you squat - you want to push your butt towards the floor and and then drive up with your hips. If you stick your butt out you'll hurt your back and get a butt ol' butt. Not as big as this woman, because she had two sofa throw pillows surgically implanted in her behind. -B
http://doubleyourgains.com/how-to-squat