When you are so sick (from food poisoning or whatever) that you have to puke and poop at the same time. In fact, you are so sick that you puke into the tank of the toilet, and poop into the bowl at the same time.
Picture an ancient Egyptian painting and how they stand. One hand pointed out front and one pointed back.
Your are puking so bad, and all of a sudden you feel some poop coming out the other side. What ya gonna do? The Egyptian. Get up and straddle the tank. Puke into the tank and poop in the bowl at the same time! That's the Egyptian
A sexual act requiring 1 man, 2 women and a strap-on dildo. The first step is for the man to wear the strap-on backwards so that the falice is pointing behind him. He then bends both women over in opposite directions and places himself in between them. He must then place one hand on the woman in front of him and his other hand on the woman behind him. Let the thrusting begin and there you have it.
For full effect, you should be listening to the song "Walk Like an Egyptian".
I totally pulled "The Egyptian" on those two hoes I brought home last night.