rat

Slang Dictionary

rat definition


  1. n.
    a wretched-acting person. (Also a term of address.) : You dirty rat, you!
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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Slang Dictionary

rat (on (so)) definition


  1. in.
    to inform (on someone). : Bill said he was going to rat on that punk.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
Cite This Source
American Heritage
Idioms & Phrases

rat

In addition to the idioms beginning with rat, also see like a drowned rat; smell a rat.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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