last straw

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the last straw

The final problem, setback, or source of irritation in a series that causes one to finally lose patience or for something to stop working. A shortening of the proverb "it is the last straw that breaks the camel's back." I've been a good sport about letting Tom share the credit for my work, but this is the last straw! I'm finally going to expose him for the liar he is. OK, that's the last straw, kids! I told you to stop shouting back there, and now I'm turning this car around.
See also: last, straw
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

last straw

 and the straw that broke the camel's back
the final difficulty in a series; the last little burden or problem that causes everything to collapse. (From the image of a camel being loaded down with much weight. Finally, at some point, one more straw will be too much and the camel's back will break.) When our best player came down sick, that was the straw that broke the camel's back. We hoped to make the playoffs, but lost all the rest of our games. When she showed up late a third time, that was the straw that broke the camel's back. We had to fire her.
See also: last, straw
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

last straw

n. the final act or insult; the act that finally calls for a response. This is the last straw. I’m calling the police.
See also: last, straw
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

last straw, the

The final minor irritation; one last superfluous item. This term, also put as the straw that broke the camel’s back, appears in Dickens’s Dombey and Son (1848). It is a version of the earlier “last feather that breaks the horse’s back,” found in Archbishop John Bramhall’s Works (1677) and repeated in Fuller’s Gnomologia (1732). Both convey a vivid image of something that would not be burdensome if there were not too much of it, but the straw version is the one that survived and became a cliché.
See also: last
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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