What members of the Ghost (a Swedish band) fandom call each other. A play on the word 'bestie', as the fandom loves to add 'gh-' in front of everyday words. Especially things related to Ghost.

For example: ghooty shorts booty shorts that are official Ghost merch, ghildo use your imagination, ghock fanfic related- usually. (seriously. use your imagination).
"Ghesties, listen up"
bro idfk we use it very randomly
by pestilenceandplague May 5, 2023
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A ghost fan who is also your friend - usually mentally ill and/or on the spectrum.
They tend to put "Gh" in front of words when it's related to the band ghost;

EX: Ghooty Shorts, Ghlube, Ghoncert, Ghildo, Ghope, ETC.
Person 1: "Hey Ghestie!"
Person 2: "I don't even like ghost"
by Squidissue February 21, 2023
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