When food is so dirty, so greasy, so indigestion-inducing, that most of it along with the calories its
loaded with, goes right through your
system undigested. Mathematically related to its close
cousin in economic theory, Giffen goods.
"Girlfriend, I can straight up eat buckets of
KFC for and not
pack on any pounds. That dirty bird flies right through me without making any stops until it gets to its porcelain watering
hole. For real. It's like I got anal bulimia."