One's personal area, usually in a family room, where one often eats, plays video games or watches tv. Can be a chair, stool, section of couch, area of floor, ect. Can by no means be stolen by another, under any circumstances. Most common in men, but not unusual for a woman to have one.
Mother: Oh my God! Grandpa's had a heart-attack! Quick, put him on the couch while I call 9-1-1.
Son: Wait! Not there, that's my spot. Here, put him down on the floor. I'll grab some pillows.