noun Slang.
  1. Extremely Disparaging and Offensive. a contemptuous term used to refer to a person of Mediterranean or Latin American descent.
  2. a person having oily or slicked-back hair.
  3. greaser(def 3).

Origin of greaseball

First recorded in 1930–35; grease + ball1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018