BB brain

BB brain

A stupid person. (A "BB" is a very small pellet used as ammunition.) Did you see the guy who's wearing two different shoes? What a BB brain.
See also: bb, brain
Farlex Dictionary of Idioms.

BB brain

n. a stupid person; a person seemingly with a brain the size of buckshot. (Also a rude term of address.) What BB brain left the door open?
See also: bb, brain
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • get brain
  • have (one's) brain on a leash
  • have brain on a leash
  • have one’s brain on a leash
  • have a stroke
  • be brain dead
  • brain dead
  • brain-dead
  • feather brain