1. A person who lacks good judgment
   - fool, sap, muggins [Brit], tomfool, jughead [N. Amer], meathead, moegoe [S.Africa], boofhead [Austral], juggins [Brit], galah [Austral], drongo [Austral, NZ], charlie [Brit]

Type of: simple, simpleton

• omnium-gatherum
• omnivore
• omnivorous
• Omomyid
• Omomyid group
• omophagia
• Omotic
• omphalocele
• omphalos
• omphaloskepsis
• Omphalotus
• Omphalotus illudens
• omphalus
• Omsk
• on
• on a higher floor
• on a lower floor
• on a regular basis
• on a roll
• on air
• on all fours
• on an individual basis
• on an irregular basis
• on and off
• on approval