一塌糊涂

yī tā hú tú

a complete shambles

Character by character

一yī
one

塌tā
collapse

糊hú
muddle

涂tú
mess

这次考试我考得一塌糊涂。

I completely bombed this exam.

Tone: negative (criticism).

Usually after 得 (考得一塌糊涂); in speech it can even intensify good things: 好得一塌糊涂.

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