KakaIru
KakaIru is the most annoying fanfic pairing ever. It’s when Kakashi and Iruka pretend to be hot for each other, even though they’re both way too old for that nonsense.
Kakashi blushed during a mission. Iruka laughed. That’s KakaIru being ridiculous.
Iruka tried to flirt with Kakashi during lunch. Kakashi just rolled his eyes. That’s KakaIru being awkward.
They wrote a whole fanfic about being ‘sensei’ and ‘student.’ That’s KakaIru being extra.