n. a religion or an adherent to the belief in a spirit god as opposed to the Deists "clockmaker" god (made the world wound it up and is sitting back watching it unwind), the Theist god, a "human" god who watches and interfers when it feels like it. The Geists god is the spirit or force that organized the world and causes it to run.
I don't belive in God. So you're an atheist! Maybe some force, like magnetism, electricity, or gravity created the world and maybe is present ... Oh! So you're a Geist.
by Pierce P Cassidy September 2, 2006
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A look of extreme disapproval conveyed to someone who is in the process of apologizing for a certain action. Typically seen in instances where the camera should be focused on the one giving the apology, but inexplicably includes an unrelated, disapproving person in the shot.

Named after Willie Geist, whose stern look of disapproval was, for whatever reason, included in the shot of Mark Halperin apologizing for calling Barack Obama a dick on MSNBC (later satirized by The Daily Show)
Mark Halperin - I am truly sorry for my actions.

Willie Geist - *geist glare*
by magzillas July 1, 2011
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The Geist Clan is was an internet clan founded in late 2013 on the website "Comic Vine". The clan was formed when two users named "Yokergeist" and "Pokergeist" started posting threads after another user named "Jokergeist" was temporarily banned. As the three of them grew in popularity, more people began changing their account names to end in "geist". After a few months, around fifty or so people had joined The Geist Clan. The clan would troll, ban raid, and ultimately try to take over the website. In mid 2014, the moderators on Comic Vine moderators broke up a ban raid by the Geists, and banned them all. Some of the higher ranked members moved to various websites, such as IGN and YouTube. The Geist Clan is currently active on the app iFunny, with Yokergeist forming an alliance with another clan called "PUG Army".
"Wow, did you see what The Geist Clan just did?"
"Yeah, they tried invading Comic Vine."
by Yokergeist May 12, 2015
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A type of ghost that periodically squeeks, like a sign in the wind or a high pitched fart. Often falsely blamed for actual farts.
Did you hear that? Must have been the Squeiken-Geist.
by Jimmy2Axes February 7, 2021
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A Tem-Geist, but one that is daddy af. Possible fuccboi material. Be prepared to get a boner or wet pussy upon encountering one.
Person A: "Oh my god have you seen that guy? He migh tlook up Tem porn all day but I want him to have my children!"

Person B: "He is a total Daddy Tem-Geist!"
by Doustthouevenderp May 6, 2017
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A British guy that spends everyday looking up tem porn.
That guy is a Tem-Geist.
by RageMan64 May 1, 2017
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Originating from a Magic: The Gathering card, Geist of Saint Traft is an old male ghost with a harem of hot young sexy angels.
Did you see Geist of Saint Traft this combat step? He's hooking up with yet another different angel. What a transparent slut...

Oh, you're playing Geist of Saint Traft as your commander? Everyone, let's gang up on the angel harem player before it gets out of hand.
by YetAnotherLonelyPhysicist August 17, 2019
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