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dull as dishwater

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*dull as dishwater

 and *dull as ditch water

very uninteresting. (*Also: as ~.) I'm not surprised that he can't find a partner. He's as dull as dishwater. Mr. Black's speech was as dull as dishwater.

See also: dishwater, dull

dull as dishwater

Boring, tedious, as in That lecture was dull as dishwater. The original simile, dull as ditchwater, dating from the 1700s, alluded to the muddy water in roadside ditches. In the first half of the 1900s, perhaps through mispronunciation, it became dishwater, that is, the dingy, grayish water in which dirty dishes had soaked.

See also: dishwater, dull

dull as dishwater

verb

See as dull as dishwater

See also: dishwater, dull