Comes from throwing down the gauntlet, which was a medieval practice in which knights challenging each other would happen. A common saying among the people of the streets these days would be shortened to throw down
Guy A "d'ya think there will be a terror attack today C? I'm scared?"
Guy C " rules are rules A, if there is a showdown we must throw down"
Guy C " rules are rules A, if there is a showdown we must throw down"
by Manly Man named Man li September 15, 2017

Casey makes a big plate of green beans, ribs, potatoes, and macaroni. She starts eating it super fast with super big bites.
Jason watching her: Damn Casey’s throwing down that food
Jason watching her: Damn Casey’s throwing down that food
by lollltree1 October 8, 2019

the wife of a man whose homosexuality isn't accepted by his parents and he is forced to marry a woman
Me: We're not sure if my sister's boyfriend is gay or not.
Aunt Beth: Maybe she can be his throw down wife.
Aunt Janet: Well she won't be getting thrown down much.
Aunt Beth: Maybe she can be his throw down wife.
Aunt Janet: Well she won't be getting thrown down much.
by idon'tknowwhyi'mhere March 2, 2016
