to swindle someone else's belongings, especially money. Usually this someone is a relative or family member. The Greenjacker then must return home for the duration of the summer. (See Greenjack, Stephen)
Yo man, dat bitch just greenjacked my cash. She routed right-quick too.
by Michael W. Fingaz August 15, 2008
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Masturbating while watching the Masters on television.
Tiger Woods's swing was looking so good on Sunday at the Masters, I couldn't help greenjacking off.
by DrBill42 April 16, 2013
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