tipper

noun8

1. •
   Someone who tips; someone who gives a gratuity.

   • The Americans are among the most generous tippers in the world.
2. •
   (UK) A goods vehicle with a tippable body, used for carrying loose materials such as gravel or rubble; a tipper truck, tipper lorry, or dump truck.
3. •
   A device for loading goods such as coal by tipping them.
4. •
   A person who tips or discharges a load, or dumps waste (especially illegally with the latter).

   • The staff discharging the coal from the wagons is known as teemers or tippers; they are employed by the dock-owners. — 1945
5. •
   One who gives private hints about racing or financial speculation, etc.; a tipster.
6. •
   A cutting tool used to cut off or trim the horns of livestock; a horn tipper.
7. •
   (slang) A small moustache.
8. •
   A kind of ale brewed with brackish water obtained from a particular well.