draw a sponge over the slate
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English[edit]
Alternative forms[edit]
Etymology[edit]
In reference to a wet sponge being used to wipe a writing slate clean.
Verb[edit]
draw a sponge over the slate (third-person singular simple present draws a sponge over the slate, present participle drawing a sponge over the slate, simple past drew a sponge over the slate, past participle drawn a sponge over the slate)
- (obsolete) Synonym of wipe the slate clean. [19th century]
- Synonym: pass a sponge over the slate