humdinger /hum-dingˈər/ (slang)

1. An exceptionally excellent person or thing
2. A smooth-running engine
3. A swift vehicle or aircraft

• pair
• pair-bond
• pair-bonding
• pair-bonds
• pair case
• pair cases
• paire
• paired
• paired reading
• pair-horse
• pairial
• pairing
• pairings
• pairing-time
• pairing-times
• pair-oar
• pair-oars
• pair of bellows
• pair of colours
• pair of compasses
• pair off
• pair of snuffers
• pair of spectacles
• pair of stays
• pair of steps