duf ‧ fer /ˈdʌfə $ -ər/ BrE AmE noun [countable] informal
[ Date: 1700-1800 ; Origin: Perhaps from Scottish English doofart 'stupid person' ]
someone who is stupid or not very good at something
duf ‧ fer /ˈdʌfə $ -ər/ BrE AmE noun [countable] informal
[ Date: 1700-1800 ; Origin: Perhaps from Scottish English doofart 'stupid person' ]
someone who is stupid or not very good at something
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012