'Greaser' definitions:

Definition of 'greaser'

From: WordNet
noun
(ethnic slur) offensive term for a person of Mexican descent [syn: greaser, wetback, taco]

Definition of 'Greaser'

From: GCIDE
  • Greaser \Greas"er\, n.
  • 1. One who, or that which, greases; specifically, a person employed to lubricate the working parts of machinery, engines, carriages, etc. [1913 Webster]
  • 2. A nickname sometimes applied in contempt to a Mexican or other Latin-American of the lowest type; -- derogatory and offensive. [Low, U. S.] [1913 Webster +PJC] grease gun