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1.
A slang word for jail meaning the crowbars is the bars and the hotel being the place where tou stay.
Your dad is visiting the crowbar hotel tonight.
by Genary April 24, 2005
 
2.
Jail. It is a mistaken expression of the original term Graybar Hotel.
Uncle Jim spent three years at the Crowbar Hotel.
by Boston Guy February 28, 2012