one of a horizontal set of fence rails that can be removed easily to leave a gateway.
Origin of slip-rail
First recorded in 1715–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for slip-rail
Historical Examples of slip-rail
Not very far off there was a lean horse standing, but he didn't seem to like to come through the slip-rail o' the paddock fence.Station Amusements