Red flag?

I've been seeing a guy for a few months and he just met my kids not too long ago. We were spending time together over the weekend and my teen and his friend were talking about something. Don't know what it was but he said "Buddies before baddies." My boyfriend said "I thought it was bros before hoes?" My teen said "We like ours better. That one is more misogynistic." My boyfriend rolled his eyes and said "Oh God! Please don't tell me you're raising those kind of people!" I asked what he meant by that and he just laughed at me. Just want to know if it's a red flag because it's just been a few months and I don't want to waste my time with a red flag.