drop and unload

to deliver goods to a store

"ok, drop and unload these at the main warehouse"

Unload the Uhaul

Taking a shit that you have been holding over the course of a cross country car ride

I was holding it in the car so long that I was relieved when I could finally unload the Uhaul.

unload the groceries

to throw ya guts up real good

had to unload the groceries after havin a good feed

unload the car

When you fart a heaping load of steamy jizzum out of your bum hole.

Deebo went in t'zeeka's booty, after she ate Taco Bell. Dat gun had to unload the car.

Unload a brew

To relieve oneself of a recently enjoyed alcoholic beverage. Unloading a brew can occur anywhere in an any setting, from a designated location, to an alley, to worse...

Partygoer1: Dude, the line for the port-o-potties is over 10 minutes!
Partygoer2 : Let's just go over there in those trees and unload a brew real quick!
Partygoer1: Word.....

unload your nuts

Using stored up but unused talents and abilities to the maximum in one epic action.

Kevin had been waiting for three quarters for his dumb basketball coach to finally put him in the game so he could show what he could do. When the starting point guard got injured, the coach put Kevin in the game, where he proceeded to "unload your nuts" all over the other team by scoring 75 points in one quarter.

Unload a full clip

to let off a round of ammunition; ejaculate

After this penalty i'll need to go home and unload a full clip