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rat someone out

Slang definitions & phrases for rat someone out

rat someone out

verb phrase

To betray or inform on someone; RAT ON someone: My little brother ratted me out, though (1990s+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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