A tax; tribute.
A land-tax paid in the Shetland Islands.
Scat singing.
To sing an improvised melodic solo using nonsense syllables, often onomatopoeic or imitative of musical instruments.
To leave quickly (often used in the imperative).
Here comes the principal; we'd better scat.
An imperative demand, often understood by speaker and listener as impertinent.
Scat! Go on! Get out of here!
Any fish in the family Scatophagidae