Pushbutton and Tapper

noun

• A tavern keeper who taps kegs or casks.
  • synonyms: tapster
• A person who strikes a surface lightly and usually repeatedly.
  • usage: "finger tappers irritated her"
• A worker who uses a tap to cut screw threads.
• Someone who wiretaps a telephone or telegraph wire.
  • synonyms: wiretapper, phone tapper
• A dancer who sounds out rhythms by using metal taps on the toes and heels of the shoes.
  • synonyms: tap dancer

(n.) The lesser spotted woodpecker (Dendrocopus minor); -- called also tapperer, tabberer, little wood pie, barred woodpecker, wood tapper, hickwall, and pump borer.