At my office, a small group of my coworkers and I work in a communal area for us as our work is collaborative. We periodically make chit chat throughout the day while we work. Recently, we were discussing a local news story where a young boy (around 7 yrs) made a gun hand gesture at his friends while playing, said "Bang! You're dead!" and was subsequently suspended. We all agreed that this was a huge overreaction on the part of the school. However, one of my coworkers said something that left me totally gobsmacked. She exclaimed, "It's like they want they to be sissy [3 letter word for a bundle of sticks]
Coworkers bean dipped.
I didn't say anything because I was so shocked. I am very shocked she would say something so offensive so openly. I have no plans to go HR as otherwise said or done anything like this since I started working there. If she had said this in conversation when it was just the two of us, I wouldn't have hesitated to say, "That is very offensive to me. Please do not say anything like that around me." However, I feel wrong saying something like that in front of all our coworkers.
Without involving HR, is there anything I can say to her about this? FWIW, we are both fairly new to the office and she has no authority over me.