keep stum

keep stum

To remain silent; to not say anything; to avoid revealing secret or sensitive information. An alternative spelling of the more common "keep schtum/shtum." It's better to just keep stum when the boss starts flinging accusations than risk further incensing him. We'll need to keep stum about this deal for the time being.
See also: keep, stum
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

stum

(stəm)
1. n. marijuana. (Drugs.) This stum is cashed. Trash it.
2. Go to stumbles.

stum [st?m]

verb
See also: stum
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
If you read many ex-players' books, they are pretty tame, and if they can keep stum about what goes on in the dressing room, then I am shocked Fergie cannot.
If their manager is unhappy with that then he should keep stum. If he can't then he should take the M74 to Carlisle and keep driving.