The most appropriate meaning of the idiom "last straw" is final problem in the series.
The idiom "last straw" is used to describe the final event in a series of unpleasant or difficult events that finally causes someone to lose their patience or give up. For example, you might say "The last straw was when my boss yelled at me for something that wasn't my fault. I quit on the spot."
The other options are not as appropriate meanings for the idiom "last straw":
- Last cookie on the plate: This is a literal meaning of the word "straw," but it is not the meaning of the idiom.
- Last person in the queue: This is a neutral description of someone's position in a line.
- Final decision: This is a more general term that can be used to describe any final conclusion or choice.
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