Crook County Commissioner. An implement or tool, such as a bishop's crosier or a shepherd's st
An implement or tool, such as a bishop's crosier or a shepherd's staff, with a bent or curved part. a bend or curve: Turn left at the crook in the road ahead. the curved part of the inside of the arm when the elbow is bent: I held the baby in the crook of my left arm. Aug 21, 2025 ยท Discover the slang definition of 'crook,' a term that signifies dishonesty and criminality in modern vernacular. . Definition of crook noun in Oxford Advanced Learner's Dictionary. A crook can also be a criminal — a person who’s dishonest, or bent, just like the staff. Crook definition: An implement or tool, such as a bishop's crosier or a shepherd's staff, with a bent or curved part. Crook is slang for criminal. How to use crook in a sentence.