hook

ot noun

1. Removal or expulsion from a group or activity He is not handling this job, so we're giving him the hook.
2. A catchy musical phrase which forms the basis of a popular song. The song's hook snared me.
3. Part of a system's operation that can be intercepted to change or augment its behaviour. We've added hooks to allow undefined message types to be handled with custom code.
4. A rod bent into a curved shape, typically with one end free and the other end secured to a rope or other attachment.

fe’l verb

1. To attach a hook to. Hook the bag here, and the conveyor will carry it away.
2. To catch with a hook (hook a fish). He hooked a snake accidentally, and was so scared he dropped his rod into the water.
3. To insert in a curved way reminiscent of a hook. He hooked his fingers through his belt loops.
4. To ensnare or obligate someone, as if with a hook. A free trial is a good way to hook customers.