What is Take The Hook?
1.
It's the fact of getting to like someone. If you like someone, and that person doesn't even know you exists, the moment in which that person starts to like you because you had flirted with him/her, is the moment when he/she takes the hook.
A: I was flirting with this girl, but she wasn't interested in me. Now I like her, she's taken the hook.
B: Yeah, girls always take the hook.
See