egghead

noun3

1. •
   A bald head.

   • But at the top of the "egghead", the blood vessels become pinched and the flow is blocked. — 1962
2. •
   an intellectual who thinks too much about books and ideas and too little about ordinary life

   • Just because some of you eggheads spend half your life in college don't mean you've got any monopoly on good common sense. — 1963
3. •
   (offensive) a bald person, usually a man

   • Then no one will know whether you are a genuine egghead or not. Besides, completely bald men are more sensual. — 1993