1. The squat can be more bent over at the waist, with a slight bend in the knees, which is why you usually see dirty mexicans with back problems.
2. The squat can also be completely with the knees so the butt cheeks are on your heels, effectively spreading them apart, for a better crap.
"Look at him over there, thats a solid Cholo Squat"
"Come on man, lets get out of here."