In the movie Peter Pan, Captain Hook is called Captain Hook because he has a hook hand and is a ship captain, similar to how my friends call me Mr Micropenis

Captain Hook Gets Offended comedy, The Walt Disney Company

Captain Hook Gets Offended comedy, The Walt Disney Company

Bait-and-Switch - TV Tropes

Peter Pan - Captain Hook's Harpsichord - Walt Disney Studios

Hook Me fysheroes

Captain Hook - Wikipedia

Peter Pan Captian Hook Mr Smee

Captain Hook Gets Offended comedy, The Walt Disney Company

Peter Pan & Wendy's New Captain Hook Backstory Explained