draw a sponge over the slate
Appearance
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