Does that word mean people that hang out in groups off to themselves?

No, that word you are thinking of is clicks. This word means a trite or obvious remark. It is like if you poured your heart out to me, and I made a motion like playing a tiny little violin on my left shoulder to mock your sincerity and show no empathy. Or if you were looking for wisdom and advice, I would reply, "Aw, grow up and get over it."