fecolith 

A way to call someone a shitrock without them knowing it, provided that they are relatively ignorant.

Why don't you get the fuck out of my way fecolith?

fecolith by J-Red1125 June 13, 2005

Fecalith 

1. literally a poop stone
2. the best nickname for any douche nozzle in your life

Dude, John is SUCH a fecalith!

Fecalith by unicornsarereal143 May 24, 2014