Wiktionary
moaning minnie
n. 1 (context slang World War II English) A noisy rocket artillery piece, the German (term Nebelwerfer German), designed to deliver chemical weapons. 2 (context slang English) A person who moans; a peevish complainer.
Wikipedia
Moaning minnie
Moaning minnie may refer to:
- The Nebelwerfer, a rocket artillery piece
- A habitual grumbler 1