be the final straw

be the final 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 final straw!
See also: final, 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 ?
Six weeks ago the county board decided to take the power to appoint selectors away from the county team manager and that huge break with tradition was something which proved to be the final straw for Morgan.