This is a word from the TYPE-MOON Universe, it means a heroic spirit.

Any humans, animal or machines that leave any great achievements behind get removed from the ring of reincarnation and sublimate into beings of higher rank.
Gilgamesh, Sir Lancelot, Alexander the Great are examples of ghostliner.
by iluvate March 19, 2013
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When one pretends to understand what another is talking about.
Person 1:"Yo do you know the group Flipsyde?"
Person 2:"Ye"
Person 1:"Are you ghostlining me?"
Person 2:"Ye that was a ghostline"
by Daluop October 25, 2006
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