Promises, promises! spoken informal
Said when you do not believe what someone has promised
A: I’ll repay you the money you lent me next week. - B: Promises, promises!
A: I will help you when you need help - B: Promises, promises!
Seem to be very suspicious or morally unacceptable
To express that you don't believe in something that someone has just said
What's in it for me?
To suspect that someone is being dishonest
Used to ask what one's problem (with someone or something) is
The origin of this expression is not clear.
To say the same thing repeatedly
Ok, I get it! You sound like a broken record, seriously!