一塌糊涂

Carelessly,I knocked my teacup over and the tea went all over the tablecloth.

我不小杯打翻了,洒得桌布上一塌糊涂。

You've made a mess of the job.

你这件事办得一塌糊涂。

She came unstuck in the last part of the exam.

她考试的最一做得一塌糊涂。