Is 'same' a curse word?

I am a mother of two kids and my eldest daughter (now 17) is making me alarmed by the amount of times she is using the word same. For example, recently I was making some homemade jam in the kitchen and she came into the kitchen. On her way back from the fridge after pronouncing that we had no food, she knocked over one of our chairs. She looked at the chair in silence for a few seconds and then said "same" and went back upstairs.

What does same mean? Is it a new curse word that I don't know about from that Tumbler website? Should I be punishing her for saying it in front of her sister?

Thank you all so much! God bless