To make a sound from the vocal chords without pronouncing any real words, with one's lips closed.
To produce low sounds which blend continuously
To express by humming.
To reek, smell bad.
To drone like certain insects naturally do in motion, or sounding similarly
To buzz, be busily active like a beehive
Unpleasant odour.
A phenomenon, or collection of phenomena, involving widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise not audible to all people.
Busy activity, like the buzz of a beehive.
A hummed tune, i.e. created orally with lips closed.
An often indistinct sound resembling human humming.
Synonym of um: a noise indicating doubt, uncertainty, &c.
Synonym of hmm: a noise indicating thought, consideration, &c.
To sing an improvised melodic solo using nonsense syllables, often onomatopoeic or imitative of musical instruments.
Here comes the principal; we'd better scat.
To leave quickly.
An imperative demand to leave, often understood by speaker and listener as impertinent.
Scat! Go on! Get out of here!
A tax; tribute.
Animal excrement; droppings, dung.
Coprophilia.
Heroin.
Any fish in the family Scatophagidae
A land-tax paid in the Shetland Islands.
A brisk shower of rain, driven by the wind.
Scat singing.