the act of manipulating yourself through your pocket while on a bus or train or public transporation, or at a public park or street, while looking at an attractive female.
Neal was Casper Jacking to the hot blonde on the MBTA the other day.
by joeswedding October 29, 2011
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The name of a mans life that consists of a chain of fuck ups.
Fuck me Jason, look at him! His name has to be Casper Jack! What a fuck up.”
by Wezadiji January 28, 2019
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