puddinghead
puddinghead
slang A foolish, stupid, or idiotic person (i.e., someone with pudding for brains). It's no surprise to me that the country's economy is tanking with that puddinghead in charge. How can you be such a puddinghead about this?
Farlex Dictionary of Idioms.
puddinghead
 n. someone, usually a male, who acts very stupid.  That puddinghead sold my antique table for junk! 
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
- puddingheaded
 - putty headed
 - puttyhead
 - putty head
 - head the ball
 - doofus
 - knuckleheaded
 - mushhead
 - meshuggeneh
 - merry-andrew