When a substance or person has you hooked.
Same as your shirt getting hooked to a lose nail, if you stop and un-hook yourself you will be freed, and dont have to go back to that nail. But can choose to do so at ones free will.
The bad guy pirate in Peter Pan.
Oh shit its hook, call up tinkerbell.
When the woman goes from the cowgirl position to the reverse cowgirl position without dismounting by turning in a 180 degree movement.
damn! i nearly blew my load when she gave me the hook!
An entity which is physically non-existent; the hook is not something you want to be on. The hook is that which if someone or something is off of it, that particular thing is of a highly reputable, A.K.A., cool status. The hook is something similar to "the chain", which is also a non-physical thing which one desires to be off of rather than on.
The shit is off the hook gangsta.
("the hook" may be replaced with "the chain")
To make out with someone, usually in public.
I got so drunk on Saturday and hooked into some random guy.