A guy who
accompanies girls to every location they need to go - i.e. malls, bathrooms, kithchens, to their boyfriends etc- except to himself. They are docters in the art of being
friend-zoned and have mastered the doctrine of
high hopes in escaping it.
Guy1: That dude over there probably has all the girls
druling at his feet
Guy2: Worry not
my good man, he's only a transporter.