"Oh, SHUT up!"
One of the aspects to Lucy that grabbed me even as a kid,
was her often brazen way of telling people off, both
friends, Ricky, and even strangers.
Her frequent "You keep out of this" was one thing. But
Lucy's tart and nasty "Oh, SHUT up!" were pretty
powerful rebuttals then and now.
When I was kid, I would've been spanked or very punished
if overheard using that phrase, even to other kids. As
an adult, it's not something I'd say to friends - unless I wanted
to lose them! And strangers? Uh, I don't think so.
"Shut up!" hasn't lost its zing, and it doesn't even need the
more modern "Shut the F$%k up!" to justify its POW factor.
One scene that comes to mind is in "Ethel's Birthday." That poor man
is holding Lucy's chair for her as the show starts. Lucy is arguing that
she and Ethel haven't made up. The man says, "Please, lady, I can't
hold this seat forever." Lucy's sudden, loud retort to "Oh, shut up!"
is ruder than rude (Ricky doesn't even apologize to the guy).
Lucy could be one rude babe when she wanted to be.