I think what Adam is trying to say is that Hook could have been on Neverland for ages (remember he was working for Pan) and could have heard about Tink in passing before she lost her wings. How powerful she was and how she breaks all. The fairy rules. It could have been a few years after she lost her wings when he actually met her in person.
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"I could have the giant duck as my steed!" --Daniel Radcliffe
Keeper Of Tamara's Taser , Jafar's Staff, Kitsis’s Glasses , Ariel’s Tail, Dopey's Hat , Peter Pan’s Shadow, Outfit, & Pied Cloak,Red Queen's Castle, White Rabbit's Power To World Hop, Zelena's BroomStick, & ALL MAGIC