1) To borrow something that you have no intention on paying back.
Hey, lemme hack a cigarette from ya
2) Used in the subculture of stand-up comedy to describe a person whose routine is a pastiche of tired cliches, trite material, easy punchlines, or common topics. In addition, any comic who uses props, does a Jack Nicholson impersonation, engages in magic or hypnotism or ever uses the phrase Have you seen these people?
Carrot Top is the ultimate hack.
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