Used to describe one's physical position when seated next to a seat bitch on an airplane or bus. In the seated position -- Both elbows are centered in above the stomach and the hands remain above the elbows. This ensures that no part of the body is allowed, remains, or otherwise intrudes upon another's seating or personal space.
I sat next to this seat bitch on my plane. My ass was doing the Praying Mantis the whole way!