Crazy that you guys don't even know about the Miyagi Talk Shit Squad™.
I hc that Suga, Yamaguchi, Tendou and Oikawa meet up post nationals and sit there and drink tea and talk INSANE smack. Like everyone knows that Suga is 'secretly' a menace and Yamaguchi had a really innocent face but he's been best friends with TSUKKI since he was like. 8. He's literally the best gossiper and he can talk about diabolical tea because he's actually cracked at eavesdropping. Oikawa (we already know) is a huge bitch (affectionate) and I bet that he's the guy that hangs out at the girls' lunch table because of all the rumors and he would stand up and go "I KNEW IT" and immediately tell the squad. And Tendou probably collects random-ass blackmail for fun. Semi and Shirabu making out in a corner? Instantly photographed, uploaded to the cloud and 3 other backup sources. A video of Ushiwaka humming to Shakira? Immortalized forever.
Now imagine all of this but the Miyagi Talk Shit Squad™ is in a group chat. And someone has tea (herbal AND verbal) and they meet up at someone's house and it's like. "Hey guess who found Semi and Shirabu making out?" "Did you guys know that Ukai and Takeda are actually banging?!" "I'm pretty sure I saw Iwaizumi with like a massive hickey on his neck!" "Oh shit, sorry gang, that was my bad!"
