The act of squatting on the side of the road and taking a shit. This is usually only necessary while driving if there is no toilet for miles and you really need to take a shit.
"The nearest toilet is 30 minutes away, guess I need to take a Turkish Offroader."
pooping. like a semi-truck trailer that offloads it's goods out of the back of the truck.
Man, I just gorged at the Mexican restaurant across the street. I had two huge carne de rez burritos. I think I am gonna be offloading in the bathroom for a while.