1. slang One's personal style, typically when it is very closely and uniquely associated with them. The term is a slang spelling of "look." Bedazzled cat's eye glasses are just part of her lewk.

2. slang An outfit that has been deliberately and carefully chosen to showcase one's unique personal style, perhaps for a specific event. I'm not surprised she went with a glitzy Old Hollywood lewk tonight—it really suited her perfectly.