English version

rat somebody ↔ out

From Longman Dictionary of Contemporary Englishrat somebody ↔ out American English informalif someone rats you out, they are disloyal to you, especially by telling someone in authority about something wrong that you have done You can’t rat out your teammates. rat→ See Verb table
Examples from the Corpus
rat outMagic shop in Plantation, the rat stock sells out nearly before it hits the shelves.Giant amphipods, the size of rats, appear out of nowhere to nibble on the remains.When they blast, the rats jump out of the sewers and then dive back in again.Sometimes the bravest rats ran out on to the floor or across the tops of the pictures.
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Verb table
rat
Simple Form
Present
I, you, we, theyrat
he, she, itrats
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Past
I, you, he, she, it, we, theyratted
Present perfect
I, you, we, theyhave ratted
he, she, ithas ratted
Past perfect
I, you, he, she, it, we, theyhad ratted
Future
I, you, he, she, it, we, theywill rat
Future perfect
I, you, he, she, it, we, theywill have ratted
> View Less
Continuous Form
Present
Iam ratting
he, she, itis ratting
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you, we, theyare ratting
Past
I, he, she, itwas ratting
you, we, theywere ratting
Present perfect
I, you, we, theyhave been ratting
he, she, ithas been ratting
Past perfect
I, you, he, she, it, we, theyhad been ratting
Future
I, you, he, she, it, we, theywill be ratting
Future perfect
I, you, he, she, it, we, theywill have been ratting
> View Less