humdinger /hum-dingˈər/ (slang)

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

• thralling
• thralls
• thrang
• thrapple
• thrappled
• thrapples
• thrappling
• thrash
• thrashed
• thrasher
• thrashers
• thrashes
• thrashing
• thrashing-floor
• thrashing-machine
• thrashing-mill
• thrashings
• thrash metal
• thrasonic
• thrasonical
• thrasonically
• thrave
• thraves
• thraw
• thraward