1hook 
/ˈhʊk/ noun
plural hooks /ˈhʊk/ noun [count] 1 : a curved or bent tool for catching, holding, or pulling something
▪ He baited the hook [=fishhook] with a worm. ▪ a coat/picture hook 2 : a ball or shot in golf and other games that curves to the side instead of going straight
▪ She hit a hook into the left rough. 3 boxing : a punch coming from the side of the body instead of going straight forward
▪ He threw a right/left hook to his opponent's body. — compare jab, uppercut 4 basketball : hook shot 5 baseball, informal — used to describe the action of removing a pitcher from a game ▪ He got the hook [=he was removed] after allowing three runs in the second inning. ▪ The manager gave him the hook. 6 : something (such as part of a song) that attracts people's attention
▪ The song has a catchy hook. ▪ They used the commercial as a hook to get people to visit their Web site.
▪ He baited the hook [=fishhook] with a worm. ▪ a coat/picture hook
▪ She hit a hook into the left rough.
▪ He threw a right/left hook to his opponent's body. — compare jab, uppercut
▪ The song has a catchy hook. ▪ They used the commercial as a hook to get people to visit their Web site.
by hook or by crook
informal : by any possible means
▪ She was determined to succeed by hook or by crook.
▪ She was determined to succeed by hook or by crook.
hook, line and sinker
informal : without hesitation or doubt : completely
▪ He gave them some ridiculous explanation, and they fell for it hook, line and sinker. [=they believed his explanation completely]
▪ He gave them some ridiculous explanation, and they fell for it hook, line and sinker. [=they believed his explanation completely]
off the hook 1 informal — used to describe someone who has avoided trouble or punishment — usually used with get or let ▪ He counted on his friends to get him off the hook. [=to protect him from trouble or punishment] ▪ I wasn't going to let her off the hook so easily. 2 of a telephone : with the receiver not resting in its usual position
▪ They took the phone off the hook so that it wouldn't ring.
▪ They took the phone off the hook so that it wouldn't ring.
on the hook for
US, informal : owing money for (something) : responsible for (something)
▪ He's still on the hook for the cost of the repairs.
▪ He's still on the hook for the cost of the repairs.
ring off the hook — see 3ring
sling your hook — see 1sling
