Also found in: Dictionary, Thesaurus, Wikipedia.
To wait with dread, anxiety, or nervousness for something to happen or come to pass. A: "I caught Tommy smoking cigarettes. He's up in his room waiting for you to come talk to him." B: "I'll go up to him in an hour or so—let him marinate for a while." They kept me marinating in the waiting room for nearly half an hour before they called me in for my interview.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. to wait calmly for something to happen. I’ll just sit here and marinate until you figure out what you want us to do.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.