duffer¹ /dufˈər/

1. An unskilful or worthless person (informal)
2. A fogey, a useless old fellow (informal)
3. A counterfeit coin
4. An unproductive mine

duffˈerdom or duffˈerism noun

duffer² /dufˈər/

1. A peddler of sham jewellery, etc
2. Someone who fakes up sham articles or duffs cattle

• sponge fishing
• spongeous
• sponger
• spongers
• sponge rubber
• sponges
• spongeware
• spongewares
• spongewood
• spongewoods
• spongicolous
• spongier
• spongiest
• spongiform
• spongily
• spongin
• sponginess
• sponginesses
• sponging
• sponging-house
• sponging-houses
• spongins
• spongiose
• spongious
• spongoid