How is “a snake” used?

In His Girl Friday (1940), one line is: “He comes by it naturally. His grandfather was a snake.”

Which movie is “a snake” from?

The clip at the top of this page is from His Girl Friday (1940).

He comes by it naturally. His grandfather was a snake.

8 作品で登場 · 1 本目

a person who pretends to be your friend but who cannot be trusted; a long, legless reptile

非難 · 56 本の映画に登場

オックスフォード映画の 40%
a person who pretends to be your friend but who cannot be trusted
編集映画の 7%
a long, legless reptile

定義：Oxford Advanced Learner's Dictionary 第 9 版