(as) dull as ditchwater
01
used to describe someone or something that is not interesting in any way
Dialect
British
British
Idiom
Informal
Old use
例
The presentation was as dull as dishwater; the speaker's monotone delivery and lack of visuals made it difficult to stay engaged.
The party turned out to be dull as dishwater; the guests seemed uninterested, and there was no entertainment or lively conversation.
