When someone doesn't agree with your opinion anymore
and just shuts you down and, basically, tells you to go fuck yourself for being an individual. It usually makes you spend the weekend feeling bad about
didn't want to hear anymore about my thoughts on his favorite football team
so he said "On a serious note, I'm out having fun and having a good
time, you're really not being cool and pissing me off just leave
me alone while they play." and, upon trying to express your opinion of a tv show says
"oh, shut UP, I can't deal
with this" and then you feel bad inside for having tried to be a part of his life. It was all extraordinarily dismissive.