Top definition
To smuggle or conceal in ones anus. To hide a foreign substance in ones rectum.
Steve totally keistered that hard boiled egg without cracking it.
by Joeseph Campbell March 31, 2006
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2
when you forget something is in your back pocket and you sit on it.
"To keister it"
"My phone is broke I kiestered it"
"yeah its FUBAR, I keistered it."
by jericasyn January 08, 2017
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