wal·lah /ˈwɑlə, ||ˌwɑlə/
僕人;經辦業務人;人
Wal·lah n. Zool. A black variety of the jaguar; -- called also tapir tiger. [Written also walla.]
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wallah
n : usually in combination: person in charge of or employed at a
particular thing; "a kitchen wallah"; "the book wallah"