i won't hold my breath
A phrase given in response to something you know is not going to happen.
In other words, you'll "die" waiting on this particular thing to happen.
In other words, you'll "die" waiting on this particular thing to happen.
Him: "I know i've hurt you alot in the past, but i promise it won't happen again"
Me: "I won't hold my breath"
Me: "I won't hold my breath"