Hair Compensator
Hair Compensator is a guy who is going bald on top but grows a ponytail in the back. Also grows a massive beard to make up for lack of head hair.
Hey look at pony tail dude. Yeah, what a Hair Compensator...he went bald on top so he is making up for it by growing it long in the back. At least it's better than a comb-over Trump style !
Hair Compensation Syndrome
Where someone who is going bald grows more hair out on the sides of their head to cover it up, or compensates for it with distracting facial hair. ie:very large sideburns, huge mustaches,goatees, etc.
"Look at that old dude's huge burns! Classic case of hair compensation syndrome."