一枪崩了我说是手哆嗦
[yī qiāng bēng le wŏ shuō shì shŏu duō suō]
Translated loosely as 'I said the gun went off because my hand was shaking'. It's more like acknowledging a bad decision through humor - a way to lighten up an unpleasant outcome by suggesting it was accidental or beyond control, maybe due to nervousness.