greas·er /ˈgrizɚ/
  加油的人;加油器;火夫長
  Greas·er n.
  1. One who, or that which, greases; specifically, a person employed to lubricate the working parts of machinery, engines, carriages, etc.
  2. A nickname sometimes applied in contempt to a Mexican or other Latin-American of the lowest type; -- derogatory and offensive. [Low, U. S.]
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  greaser
       n : offensive terms for a person of Mexican descent [syn: wetback,
            taco]