(as) dull as dishwater


US, informal
: very boring or dull
The conversation was as dull as dishwater.

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Cite this Entry

“(as) dull as dishwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/%28as%29%20dull%20as%20dishwater. Accessed 23 May. 2024.

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