Jolie, who wore a black Atelier Versace gown at the Academy Awards, got the attention of viewers and Twitter for sticking out her right leg from the slit of her dress on the red carpet.
She struck the same pose when she presented the awards for 'Best Original Screenplay' and 'Best Adapted Screenplay'.
The latter award went to The Descendants writers Alexander Payne, Nat Faxon and Rash, with Rash copying Jolie's stance as they accepted their Oscar.
Rash explained the moment to New York Magazine, saying: "Some people were like, 'How dare you?' But it wasn't mocking at all.
"She chuckled when she stood like that, and I thought she was sort of just owning that dress and rocking it and selling it, so I thought, I should do that with my own stance to be proud of this moment."
When he was asked if he kept up with "meme" of Jolie's leg and its Twitter account, Rash answered: "Yeah, but I think that started happening way before it got to me. People were talking about that from her red carpet stuff."
Watch the trailer for The Descendants below: