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YOU DUN KNOW is basically a sayin used by pure badmen, rudeboiz, rudegaldem, and all the mandems locked on inside. it means YOU DUN KNOW you wud use this sayin in sad or scary times when mans got his back against the wall and the gunchester/bombingham mandems are comin at him with baaare machete bled ya get me? Its hard to explain so just read the examples bit yeah while i cut off my foreskin yeah U DUN KNOW its gunna hurt yeah
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