Last Straw Definition
noun
The last of a sequence of annoyances or troubles that results in a breakdown, loss of patience, etc.
Webster's New World
(slang) A small addition to a burden which causes it to exceed the capacity.
That's the last straw; it's a petty demand but I'm already under too much work. I quit!
Wiktionary
Origin of Last Straw
From the proverb “It's the last straw that breaks the camel's back”
From American Heritage Dictionary of the English Language, 5th Edition
Ellipsis of the straw that broke the camel's back.
From Wiktionary
