The Yankee Squat

So somebody previously asked me what a "yankee" is. In Japan, students that don't conform to the usual rules of high school are called "yankees". This means that they do any one of these things:

Dye their hair.
Wear lots of makeup.
Roll up their skirts or wear their ties loose.
Unbutton blouses/shirts.
Talk using lots of slang and are rude.
Don't pay much attention in class, either sleeping or causing disruptions.
Walk around acting like they are the class of the school, bullying others at times.
And last but definitely not least, they sit in the style that is described as the "yankee squat".

I was unable to find any pictures online of Japanese highschoolers sitting in the style of a yankee, or even any pictures of yankees online... hm... I did find though a picture of baseball players sitting in "yankee" style (a common way to rest in Japan if you're tired of standing but there are no seats around).

I find myself occasionally getting into the stance without realizing it.