Pay you back
The phrase "pay you back" usually means to repay someone for something, especially money, that they have previously given or loaned to you. It can also refer to reciprocating a favor or kindness shown to you by someone.
English is confusing! Why do people say "Pardon my French" when they are speaking English? Because of idioms!
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
Play Just Saying - the word game that makes learning idioms a good time on your mobile phone or tablet.