spic

Từ điển Oxford Advanced Learner 8th

spic [spic spics] BrE [spɪk] NAmE [spɪk] noun (taboo, slang, especially NAmE)
a very offensive word for a person from a country where Spanish is spoken, for example a Mexican or Puerto Rican
Idiom: ↑spic and span

Word Origin:
early 20th cent.: abbreviation of US slang spiggoty, in the same sense, of uncertain origin: perhaps an alteration of speak the in ‘no speak the English’.