stumer /stūˈmər/ (slang)

1. A counterfeit coin or note
2. A forged or worthless cheque
3. A sham
4. A dud
5. A failure, bankruptcy
6. A horse sure to lose
7. A stupid mistake, clanger
8. A stupid person (Scot)

• opals
• opaque
• opaqued
• opaquely
• opaqueness
• opaquenesses
• opaquer
• opaques
• opaquest
• opaquing
• op art
• op cit
• opcode
• opcodes
• OPCW
• ope
• OPEC
• op-ed
• opeidoscope
• opeidoscopes
• open
• openable
• open access
• open-access
• open adoption