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1.
The art of performing oral sex or a hand-job to sleeping man without causing him to wake. A proper magic jack should involve clean-up as well, leaving the reciepient all but unknowing of the night's transgressions.
I woke up feeling great this morning, even after 16 Budweisers and a handle of Beam. On cloud nine all day, couldn't figure it out. Then my girl told me she magic jacked me after I passed out last night! Mystery solved!
by Beatsauce June 04, 2009
 
2.
Masturbating in a 40 year old overflowing, shit piled high beyond seat rim, outhouse without puking.
After being in the woods for a week with only straight men and Mormons he had to go magic jack.
by Jbondage069 May 19, 2011