quebracho Share definition Flag Mexican slang for gay or homosexual. Variation on "quebrachon" Also one of three types of tree in the Gran Chaco region of South America used medicinally. Mira el hombre tan bonito. Debe ser quebracho. quebracho by Donna W October 10, 2007 0 0 Get merch Get the quebracho mug. Buy Now — $32.95 See more merch