Definition
Extremely difficult to understand; very confusing or unclear.
讓人蒙柧蒙
The report was written so unclearly, it was as clear as mud.
這份報告寫得非常不清楚，簡直讓人一頭霧水。
His explanation sounded like a bunch of gibberish, it was as clear as mud.
他的解釋聽起來像一堆胡言亂語，完全讓人摸不著頭緒。
The terms of this contract are as clear as mud; no one can understand them.
這份合約的條款讓人一頭霧水，沒有人能理解。