How is “rub out” used?

In A Simple Favor (2018), one line is: “What are you... Are you saying he had her rubbed out?”

Which movie is “rub out” from?

The clip at the top of this page is from A Simple Favor (2018).

Slang

to murder sb; to remove the marks made by a pencil, etc., using a rubber / eraser

Heard in 4 movies

1
rub sb outslangAmerican
to murder sb
2
rub sth out
to remove the marks made by a pencil, etc., using a rubber / eraser
to rub out a mistake

Definitions from the Oxford Advanced Learner's Dictionary, 9th edition

What are you... Are you saying he had her rubbed out?

Said in 4 films · #1