To take the nastiest, filthiest, wettest dump in a paper bag and then slap someone in the face with said bag. Works best when bag has had time to soak and get soft and soggy.
Wes tried to unload some groceries on that dude, but the bag ripped mid-swing and spattered feces all over the bystanders and they started gagging and wretching, followed quickly by vomiting on each other en masse. What a night.
by UnloadSomeBrownLove April 17, 2010
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the act of blowing your load all over a girls face, titties or any other body part for that matter
dude, did you unload your bag all over that fat bitch from school yet?

I totally had to unload my bag on that broad last night
by thegoatman87 October 8, 2009
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Release of a very large amount of semen upon ejaculation
I am so horny it feels like I will unload a mule
by Darth Damo July 7, 2017
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