(as) smart as paint

(as) smart as paint

1. dated Very witty or intelligent. (A reference to the bright look of fresh paint.) Billy's always been smart as paint, so I'm not surprised to hear that he gets good grades. Sarah here is as smart as paint, so she's the one to ask, not me.
2. dated Well-dressed and groomed; fashionable. (A reference to how appealing fresh paint looks.) Look at you in your suit! Why, you look as smart as paint! The soldiers marched by, smart as paint in their uniforms.
See also: paint, smart