How is “foam at the mouth” used?

In Leo (2023), one line is: “A rabid, bitter bag of mothballs foaming at the mouth.”

Which movie is “foam at the mouth” from?

The clip at the top of this page is from Leo (2023).

to have a mass of small bubbles in and around its mouth, especially because it is sick or angry

informal · Se oye en 7 películas

1
to have a mass of small bubbles in and around its mouth, especially because it is sick or angry
2
informal
to be very angry

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

A rabid, bitter bag of mothballs foaming at the mouth.

En 8 películas · n.º 1