Meaning of 堪忍 in Japanese

Definition of 堪忍

かんにん(kannin) 【堪忍 ·勘忍】

かんにんぶくろのおがきれる(kanninbukuronoogakireru) 【堪忍袋の緒が切れる】

(exp, v1) to be out of patience; to be unable to put up with something anymore
堪忍袋の緒が切れる。
My patience has come to the breaking point.

かんにんぶくろ(kanninbukuro) 【堪忍袋】

ならぬかんにんするがかんにん(naranukanninsurugakannin) 【成らぬ堪忍するが堪忍】

私のわたし堪忍袋の緒が切れた。

My patience is worn out.

堪忍袋の緒が切れるかんにんぶくろのおがきれる。

My patience has come to the breaking point.

I can't take this anymore. I've lost my temper completely.

It was bad enough that he usually came to work late, but coming in drunk was the last straw, and I'm going to have to let him go.