english slang of the day:

“to rat (someone) out” // verb

this expression isn’t new, but it’s understood by almost everyone. it means “to tell on someone,” or basically to snitch on someone. when someone does something wrong and they ask you to keep it secret or there is understood secrecy involved, by telling someone else about it, you are “ratting them out.”

-“Hey, why do you have to retake the exam? I thought you got away with it?”

-“No, Evan ratted me out, so the professor knows it was me who stole the answer sheet.”