- dull as dishwater/ditchwater, extremely dull; boring.
Origin of dishwater
- water in which dishes and kitchen utensils are or have been washed
- something resembling thisthat was dishwater, not coffee
Word Origin and History for dull as dishwater
Idioms and Phrases with dull as dishwater
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 dull as dishwater.