Originally tweeted by James Charles.
Basically when someone has a point that is irrelevant or unnecessary and needs to be told to stop talking.
Person 1 " Yeah I just don't think Shawn Mendes is hot"
Person 2 "shut up faith"
Or
Person 1 "why would a guy wear makeup... that's so not we want after all the feminism we had"
Person 2 "wtf, shut up faith"