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1A weak or watery drink.‘one pot of wish-wash called ‘tea’’
- ‘They spoke English, too, although a waitress in a local coffee shop did not know what ‘espresso’ meant, and I ended up with a cup of a watery Welsh wish-wash.’
2Insipid or excessively sentimental talk or writing.‘this isn't just emotional wish-wash’
Late 18th century reduplication of wash.
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