I. ˈspȯilə(r) noun
( -s )
Etymology: spoil (II) + -er
1. : one that spoils: as
a. : one that plunders : pillager , robber
estates soon became very great, tempting the spoiler — G.G.Coulton
b. : one that corrupts, impairs, injures, or makes useless
2. : a long narrow hinged or retractable plate that extends along the upper surface of an airplane wing and that may be raised above the surface for reducing the lift of the wing and increasing its drag
II. noun
1. : an air deflector on an automobile for reducing the tendency to lift off the road at high speeds
2. : one (as a presidential candidate or a baseball team in a pennant race) that has little or no chance of winning but can prevent another's winning