tip·per \ˈtipə(r)\noun (-s) : one that tips: as a.: dumper 1c b.: one whose work is making, fastening, or applying tips c.ortipper-in\| ̷ ̷ ̷ ̷| ̷ ̷\: a worker who tips pages into book or pamphlet signatures d.: a worker who blocks felt hats e.: a worker who picks and dresses poultry f.Britain: a truck whose body tips for unloading : dump truck