Unmentionables definition
Things regarded as improper to be mentioned or talked about; specif., in jocular use, undergarments.
pluralNoun
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Origin of unmentionables
- Victorian Era euphemism, specifically the category of euphemism known as indirection (compare privates, behind, sleep together). First intended meaning was "trousers", attested from 1823. Meaning "underwear" is recorded from 1910.
From Wiktionary