I hate women because they have brought into the currency of our language such expressions as "all righty" and "yes indeedy" and hundreds of others.

Taken at face value, the line is a deliberately exaggerated, comic “complaint” that uses mock-misogyny to target something else: the speaker’s irritation with cutesy, euphemistic, or infantilizing turns of phrase (“all righty,” “yes indeedy”). In Thurber’s humor, such overstatement often signals a persona—fussy, curmudgeonly, and theatrically aggrieved—rather than a literal manifesto. The joke depends on misdirected blame: instead of criticizing the expressions themselves or broader linguistic fashion, the speaker scapegoats “women,” heightening the absurdity and revealing how irrational prejudices can attach to trivial annoyances. The line also gestures at anxieties about changing vernacular and who is imagined to “shape” everyday speech.