What you say to someone when they make you laugh so hard it results in somewhat questionable pleasure.

The phrase 'Crack me up' and 'Jack me off' combined.
John:"Paul you crack me off!" Paul: "......nice to know". *awkward silence*...
by aceboy27 April 4, 2011
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A phrase used in internet forums to confess having masturbated to a posted pic or story. Frequently used to express appreciation for a pic or story even if actual masturbation hasn't taken place. Occasionally used ironically or to be comedically inappropriate.
Example 1: <user posts pic of a PAWG> ... I just cracked me one off.

Example 2: <I just found out that my mother has terminal brain cancer> ... I just cracked me one off .
by Carlton G. Long January 12, 2020
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