Twitter: We're mutuals because we are both following each other, as you can publicly see when you look at our profiles
Tumblr: We're mutuals because we're always passive aggressively sniping at each other's opinion posts, as you can see if you pay close attention
Cohost: We're mutuals because we kiss with tongue
not gonna lie, we hate the feeling of exclusion whenever someone says something "to my mutuals" or "mutuals only" :(