beat one's gums
beat (one's) gums
To talk repeatedly and/or lengthily but without impact. I constantly beat my gums about dirty dishes in the sink, and the kids still never clean up after themselves!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
beat one’s gums
tv. to waste time talking a great deal without results. I’m tired of beating my gums about this stuff.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.