Die in a pot hole
Telling someone to literally fall into a pot hole while walking. To wish death on someone in the most disgusting and vile manner, to die in the sewer system after falling into a pot hole, especially the sewer system of a large city ie. New York City, where the rats  are bigger than cats. 
Guy 1: Go die in a fire!
Guy 2: Go die in a pot hole!
Guy 1: Touche.