hi, I would like to know if 'last straw' could somehow mean 'last chance' ... like .. Ex: that was his very last straw [last chance ] of saving his son.
"MR. BROUGHAM remarked, that if it [a tax on soap] were only 3d. a head, or 4d. and 5d. upon the lower orders, yet straw upon straw was laid till the last straw broke the camel's back."
The origin of the phrase will help you understand it and remember its meaning
A load of straw is placed on a camel's back. Adding straw after straw until the last straw amounted to the weight required to break the camels back.
: 'The last straw' - the meaning and origin of this phrase
The earliest citation that I can find is from The Edinburgh Advertiser, May 1816: