IPA: /ˈspæŋkər/
KK: /ˈspæŋkər/
A type of sail used on sailing ships, typically located on the mast closest to the back of the ship.
The crew adjusted the spanker to catch the wind more effectively.
Spanker originates from the verb 'spank', which is of uncertain origin but is believed to be imitative of the sound made when striking. The suffix '-er' indicates a person who performs an action. Therefore, a 'spanker' is someone who spanks or strikes.
Think of the action of striking that makes a sound, and remember that a 'spanker' is someone who performs that action.