O que significa a expressão TO SHOT FROM THE HIP?

• I don't want to be harsh but I can't bear one more second of Mary's sensitiveness anymore.
• What happened? I thought you guys had hit it off pretty well.
• Well, me too. But then I got to know her a little bit better and I realized how much of a flower she is. I need to be very careful with every word and reaction I have with her or else she will be extremely offended. I've had enough of this.
• Well, maybe it's just your nature to shoot from the hip.
• Definitely not. You know me better than that. Although I tend to be very frank to people, I've learned to be more careful with her, but she still manages to hang on every word I say. She must be mad at me about something I said. You can give me a million dollars to find out what it is and I'll have no clue.

shoot from the hip

1. Lit. to fire a gun that is held at one's side, beside one's hip. (This increases one's speed in firing a gun but is muchless accurate.) When I lived at home on the farm, my father taught me to shoot from the hip. I quickly shot the snakebefore it bit my horse. I'm glad I learned to shoot from the hip.

2. Fig. to speak directly and frankly. (Alluding to the rapidness of firing a gun from the hip.) John has a tendency toshoot from the hip, but he generally speaks the truth. Don't pay any attention to John. He means no harm. It's just hisnature to shoot from the hip.