Bushel Head

Originally a Travelers term for the types of people listed below
A large head - gifted in the size of ones cranium.
Someone who knows it all , someone who is too clever
Derived by the fruit picking travelers of years gone by after the bushel boxes which their fruit was placed

'Look out , here comes bushel head '- as you are approached by said clever individual
'Here comes Ambrose , look at the size of that bushel head'
'That boy has got a head like a bushel box'
'My cousin Perry is a big old mush , he's got a proper bushel head too'