Sayings or other oddities expressed by Keith Hernandez (the former 1st baseman for the New York Mets).
-"That's an el bomberoni!"
-Well that's a Keithism; if I ever heard one.
by 5Mets7 May 23, 2011
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The religion of Keith Kogane. Keith is so hot, I'd let him stab me with his blade.
Example:

Person A: What religion do you follow?

Person B: I practice Keithism

Person A:..what
by KeithLikesHippos May 2, 2019
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The religion based around the following of a young man named keith
"My good fellow, does thou practice Keithism?"
by Spectre42 January 6, 2022
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Noun- The inability to properly type or write words correctly; typos.
i.e. Writing the word human being instead of human bioeng is an example of Keithism
by Yourintellectualsuperior123 November 10, 2021
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the religious ceremony of fucking mooses every day
George-"Dude, why did you buy a moose?"
Bob-"It's for this new religion of keithism! You should join!"
by Brett and Nick April 28, 2008
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