adj. — Prince Edward Island, Outdoors
slippery or smooth, usually pertaining to ice; often in the phrase glib ice.
Type: 2. Preservation — The adjective glib is used to describe surfaces that are slippery and smooth (see COD-2, s.v. "glib" (2)). It is used most commonly to refer to ice that resembles glass in appearance (see the 1874 quotation). As noted by DPEIE, glib is likely a preservation from British English. It is the result of a semantic narrowing to the context of ice from the more general meaning of 'pertaining to a smooth and slippery surface or consistency', which dates back to the 16th century (see OED-3, s.v. "glib" (1)).
See COD-2, s.v. "glib" (2), which is marked "Cdn (esp. PEI)" and DPEIE, s.v. "glib".