Can not believe how my friend talked to her mom

I spent the night at my friend's house today. We were sitting on the bed and she was playing on her Xbox. Her mom comes in and says it's her night to do the dishes. Sbe says "Stop coming in my room! I'll do it later!" Her mom says "There's no need to yell hun." My friend says "Shut up mom and get the fuck out!" Her mom just sighs and leaves! I just stare at her and she laughs and talks about how stupid her mom is. I'm sitting here thinking what would happen if I went home to my Jamaican mother and said any of that. Just thinking about it terrified me because there would be serious consequences. I'm also wondering why her mom just let it happen. I just can't believe how some kids at my school talk to their parents. Idk if anyone here has Jamaican parents, but that's a no go in my house!