be the last straw

be the last straw

To be the last in a series of negative actions or events that makes the situation no longer tolerable. I'm already fed up with your lazy, selfish behavior, Jim, but if you can't be bothered to come with me to my own mother's funeral, well that will be the last straw!
See also: last, straw

be the last/final ˈstraw

(also be the ˌstraw that breaks the camel’s ˈback) be the last in a series of bad events, etc. that makes it impossible for you to accept a situation any longer: I’ve had a terrible day, and this traffic is the last straw, I can’t take any more.
See also: final, last, straw
References in periodicals archive ?
We are usually overworked, often frustrated and these little irritants may be the last straw that pushes us over the edge.