Slang verb usually meaning to commit an act which will result in a long prison sentence or even death. Most commonly used in NYC, though not exclusively. One who crashes out can also be called a 'crash dummy'.
Person 1: I really wanna kill this opp over there.
Person 2: Nah, it's broad daylight; don't crash out over some petty beef.
Person 1: You right, Ion wanna be no crash dummy.
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