it's hard to say why specific wodehouse quotes are lasting favorites, but...

[cimorene]

Her lips were tightly glued together, her chin protruding, her whole lay-out that of a girl who intended to stand no rannygazoo.

- PG Wodehouse, Aunts Aren’t Gentlemen


...this one's a definite favorite. Maybe it's the vivid and rather aspirational image.

Comments

[cimorene]

I looked up the etymology and nobody knows it, but I think I've heard its older forms in playground rhymes: https://www.wordsandphrasesfromthepast.com/bull-blog/rannygazoo#