What Is a Beige Flag?

I don't know what beige flag means, but people are saying it. Craig's red flag is he'll get up and help them start serving meals to people. Beige flag just sounds like Sophia Richie's new outfit. I'm trying to think if I have any beige flags for Craig like things that he does that I'm just like it's quirky It's weird. Is it good or is it bad? Yeah, I mean we Mother stories.