clarthead

clarthead

(ˈklɑːtˌhɛd)
n
dialect Northern English a slow-witted or stupid person
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
"It's a matter of opinion whether it applies to both men and women." Other Northern terms to make it into the new dictionary include "clarthead" - which the dictionary states means "a slow-witted or stupid person" - and the word "blethered" - which Collins defined as "weary".