Definitions for "Snap hook"
Keywords:  hook, flagpole, halyard, sprung, spring
A metal device with a spring catch to attach one thing to another
A very pronounced hook.
A plastic or metal "S" hook used to hang tabs etc. A sprung catch prevents the hook becoming detached.
Assuming a right-handed player, a shot that starts quickly to the left and angles sharply and further to the left, producing a very short and undesirable result.