last straw 

The point where stress, anger, or some other emotion takes over, may result in insanity, suicide, murder, or mall/school shootings.

Thats the last straw, I'm gonna fucking kill his ass.

last straw by Fuckoffistan January 18, 2008

Last straw 

The latest in a series of distressing but regularly tolerated events that gives rise to the first obvious sign of intolerance towards the offending party, usually in the form of a drastic decision or the offer of an ultimatum. May have come from shortening the idiom/expression "the straw that breaks the camel's back", relating the distress caused by the offending party to stacking straw on the back of a camel over time until it collapses under the weight.

After a series of non-explicit infarctions, Jimmy McGill loudly disturbing his coworkers with his bagpipes is the last straw that forces Cliff Main to fire him from his law firm without cause.

Last straw by WorstAnimu July 16, 2022

The Last straw 

Is a term that is used to tell someone that they had enough of whatever was bugging them

This the last straw that normie is gonna get it!

The Last straw by TheRandomDownTheStreet79 October 18, 2017

The last straw 

Something my girlfriend said when she left me.

Karen: this is the last straw!

The last straw by Rookiehours1324 June 28, 2019