When a person intentionally acknowledges all their flaws or shortcomings so that no one else can diss them for those flaws. In other words, being unapolagetic for the bad things about you, to show that the other person is too pussy to admit their mistakes or own up to their shit. Most famously used by B-Rabbit played by Eminem in the film 8 Mile.

A polite term for shoving a lubricated probe into the Earth's hole to release gas.