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1. Being Attacked by a ghost in the middle of the night, after a heavy weekend of drugs, alcohol, and no sleep. When you are in the process of 'fackjilling' you are not sure if you are imagining it because of the pills and drugs you took, or if it is a real ghost. Usually is a combination of both.

2. A sexual Act in which you are left confused after a heavy amount of drugs and alcohl. confused, yet satisfied
1. i.e 'fuck guys, last night i was fackjilled good and proper'.

2. i.e 'i fackjilled that bird well hard last night. shoulda seen her face'
by gc_giy August 31, 2006
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