knuck ‧ le ‧ head /ˈnʌk ə lhed/ BrE AmE noun [countable] American English spoken
someone stupid – used when you are not very angry with them SYN blockhead British English
knuck ‧ le ‧ head /ˈnʌk ə lhed/ BrE AmE noun [countable] American English spoken
someone stupid – used when you are not very angry with them SYN blockhead British English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012