My mother a”h spoke mostly Yiddish to my brother and myself in the house when we were growing up. It was her first language (she was from Eastern Europe). My father a”h was also Eastern European but he only spoke to us in English. I am very conversant in Yiddish which has come in handy sometimes. Unfortunately all of my Yiddish speaking family members have passed away so I have almost nobody left to speak Yiddish to anymore. 🙁
Looking at the OP, seems to me the elderly men were telling the young man to stop making such a commotion when lighting the candles. They used a colloquial expression.