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
Farlex Dictionary of Idioms.

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
Farlex Partner Idioms Dictionary
See also:
  • be the final straw
  • be the last/final straw
  • the final straw
  • lazy
  • lazy dog
  • lazybones
  • lazy-bones
  • browned
  • a spoonful of sugar helps the medicine go down
  • mentality
References in periodicals archive
Robert's unprecedented attack will be the last straw for boss Souness who, unlike predecessor Sir Bobby Robson, is not prepared to cajole the midfielder and waste hours giving the same instructions - that he must work harder and defend more.
Football: Robert to quit Toon
We are usually overworked, often frustrated and these little irritants may be the last straw that pushes us over the edge.
Pet peeves