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The best part of that activity is that after you're finished with it, you can take drive your mud-plastered 4X4 out the highway and open 'er up, listen the thrummy hum of your monster tires on the asphalt and the light whistle of the wind as it hardens the oozing mud all over your truck's body to a brittle shell.— Original Signal - Transmitting Buzz
Push the Elantra beyond a canter, though, and the engine's creamy smoothness gives way to a hollow drone, accompanied by some thrummy vibes at wide-open throttle.— Epinions Recent Content for Home
And on her head a thrummy cap she had.— Specimens with Memoirs of the Less-known British Poets, Complete
The petala are very tender, 5 in number, scarce so large as the calix: in the middle stands a columella thick set with thrummy apiculae, which argue this plant to belong to the Malvaceous kind.— A Voyage to New Holland

Century Dictionary (1)
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