The act of kidnapping a person with the use of a fish.
Common uses include:
1) Blindfolding them with it.
2) Concussing them with it.
3) Luring them into a dark alley with it.
Person 1: What's copnapping?
Person 2: It's when you capture a police officer.
Person 1: That sounds dangerous.
Person 2: Not if you have a tranquilizer gun.