In a pig's eye!

In a pig's eye!

 and In a pig's ass!; In a pig's ear!
Rur. Nonsense! (Use caution with ass.) Tom: I wasn't going to steal it. I was just looking at it. Jane: In a pig's eye! I saw you put it in your pocket! Mary: Bill says he's sorry and he'll never yell at me again if I take him back. Jane: In a pig's ass! He's made those promises a hundred times before. Tom: I thought you said I could keep this. Charlie: In a pig's ear! I said you could borrow it.