under-the-counter

[ uhn-der-thuh-koun-ter ]
/ ˈʌn dər ðəˈkaʊn tər /

adjective

(of merchandise) sold clandestinely.
illegal; unauthorized: under-the-counter payments.

Origin of under-the-counter

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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