Similiar to the "hucklebuck" family of sexual positions. The qualifier "eqyptian" denotes an kinky, unusual, or extra amount of contortion on the part of the female while in the hucklebuck position.
I knew that she was kinky, but then she flexed her taint, bent her legs back another two feet, and bocked like a chicken! It was then that I knew we had achieved the nirvana-like state, known only as the Egyptian Hucklebuck.
by DrChingasa May 17, 2005