Meaning of pointy-headed

point•y-head•ed

Pronunciation: (poin'tē-hed"id), [key]
— adj. Slang (disparaging)
  1. stupid; idiotic.
  2. intellectual, esp. in a self-important or impractical way.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.