What does "tick-tock" mean to Hook?

[Disneyatic]

I have to admit I don't think I have seen Peter Pan all the way through
Can someone tell me what "tick-tock, tick-tock" means to Hook?
I read on another thread that saying this to him "irks" him!

DD was just telling me a day ago that she couldn't believe I hadn't seen the whole movie!
But in my defense, when I was little I did NOT like villans and would only watch a movie until the bad guy came on and then I switched them off! So I am playing catch-up on all the 2nd halves of movies now!

[FriendsofMickey]

The Hungry croc swallowed an alarm clock and goes around tick-tocking, so that Hook can always hears him.

If you do not know that is how Hook lost his arm (the hungy croc) and hook blames Peter Pan. So the croc is always following hook around to get another taste.