throw down
To get involved in something, either suddenly or much more seriously than you were previously. This can be used in the context of many situations, including paying for something, having sex, or most commonly, to fight.
"Shit, we don't have enough cash to get in. Okay, everybody throw down."
1-"You wanna start something?"
2-"Fuck this, I'm throwing down on this fool."
1-"You wanna start something?"
2-"Fuck this, I'm throwing down on this fool."
throw down by The BXRabbit January 13, 2009
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