is when you're stuck without anywhere to take a dump, so you dump in your hand. Comes from tradition in Nepal, where the word for "hand" is the same for the word for "toilet".
Dude, on the way to work today I took a Nepalese hand sandwich!
The act of bludgeoning a woman, moments after she has given birth, with the newborn fetus by grasping the umbilical cord and slamming her repeatedlyin the head.
I didn't care if she was pregnant with my child, that bitch was going to get a Nepalese Hat Dance as soon as the runt came out.