-ˈgrəndē, -di noun
( plural mrs. grundys also mrs. grundies )
Usage: usually capitalized M&G
Etymology: from Mrs. Grundy, character alluded to in the play Speed the Plough (1798) by Thomas Morton died 1838 English playwright
: a person marked by a narrowly conventional outlook or by prudishness or by stiff intolerance of any breach of propriety