1 definition by Phoster Remingtin

The act of involuntarily masturbating in one's sleep.
Stuart's wife was delighted to find her husband slumberjacking in his hospital bed. Stuart was involved in a horrific traffic accident some months ago and has been in a coma since. And now, what initially disturbed her deeply in their honeymoon bed, gave her hope.
by Phoster Remingtin September 11, 2011
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