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not know the first thing about

Idiom983/1,085

to know nothing at all about sb / sth

Heard in 1 movies · The Letter
It's strange that a man can live with a woman for 10 years and not know the first thing about her.
The Letter (1940)42:20
Idioms · 983 of 1,085
    not know the first thing about meaning & examples · 1 movie clips · from The Letter (1940)