Men with good manners, will always let the woman go first (example through the door etc.)
but it's not the true meaning.
In reality, it means "Lady, go first so can I stare at your butt!"
Marina:" very kind, you are a true gentleman"
Andy :" Indeed" *stares at nice butt!*
Female #2: I don't give a shit what the hell he wants! If you keep going with him, I'll have him taken care of, if you know what I mean. We're supposed to be friends to the end, and after all, the law is ladies first!