chigger

noun

1. A chigoe (Tunga penetrans), a kind of flea found in tropical climates.
2. A harvest mite (Trombiculidae spp.), a very small, red mite endemic to the Midwestern and Southeastern US, the infestation of which causes intense itching.

   “Dr. Lareau, an emergency medicine physician at Carilion Franklin Memorial Hospital in Virginia, had seen these marks once or twice before on patients. She knew what had caused them. They were from chiggers, a species of tiny, reddish-brown mites able to leave bites that remain itchy for days or weeks.”

3. (US, derogatory, ethnic, offensive, slang, slur)An East Asian person who behaves in ways similar to a stereotypical urban African American.

   “—He's not black, Stacia Jacobs who smelled like pee said. — He's yellow and black. He's a chigger. Do you know what a chigger is? It's a chink and a nigger.”