a coat made of water-resistant material <he put on his slicker and boots and headed out into the rain>
a person with the outlook, experience, and manners thought to be typical of big city dwellers <dressed in their designer duds, the out-of-state slickers stood out amongst the locals at the harvest supper>
Seen & Heard
What made you want to look up slicker? Please tell us where you read or heard it (including the quote, if possible).