The troll gene

"By seventh grade Olga had grown huge and scary, a troll gene in her somewhere, started drinking 152 straight out to the bottle and was finally taken out of school because she had a habit of screaming NATAS! in the middle of homeroom. Even her breasts, when they finally emerged, were floppy and terrifying. Once on the bus Olga had called Oscar a cake eater, and he had almost said, Look's talking, puerca, but he was afraid that she would rear back and trample him; his cool-index, already low, couldn't have survived that kind of paliza, would have put him on par with the handicapped kids and with Joe Locorotundo, who was famous for masturbating in public."

Junot Díaz, The Brief Wondrous Life of Oscar Wao.