Top Definition
an intense form of masterbating. make sure you have a llama handy.
Tyler: "what did you do this weekend?"
Sam: "Oh, nothing. How about you?"
Tyler: "I was by myself so I decided to masterjackabate. It was like serious masterjackabation."
Sam: "With your llama?"
Tyler: "DUH!"
by sexualpredator696969696969love November 04, 2009

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