7 letters · 8 points in Scrabble
noun (ethnic slur) offensive term for a person of Mexican descent
originFrom grease + -er. Applied to mechanics because they frequently become greasy during the course of their work. Applied to toughs because they frequently greased their hair, and, like greaseball, to Italians for the same reason. Applied to Mexicans because, at the time the phrase originated, they commonly worked greasing the axles of carts.
Etymology from Wiktionary, CC BY-SA 3.0