A term meaning a cancer tumor, usually one that is malignant.
Guy 1: "Hey did you her about Dave?
Guy 2: "No, what happened?"
Guy 1: "He got a tortilla star down in Brazil."
Guy 2: "Aw poor guy.
"And anyway, a woman's place is sleeping so she can wake up early with the tortilla star,..."
-passage from "The House On Mango Street"