n. a dose of a drug in a capsule or folded in a paper. (Drugs.) : How much you want for a check?
interj. okay; yes; yes, it is on the list. BILL: Four quarts of oil. TOM: Check. :
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw-Hill Education.
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Idioms & Phrases
Restrained from moving or acting; under control. For example, The first division held the enemy in check, or Mary kept her emotions in check. This term replaced at check and out of check, which date from the mid-1500s.