It all started when I told him to slow down while driving because the speed limit was 55 and he started saying “Schfifty-Five” a lot while calling me a little girl and saying that his IQ was also Schfifty-Five. Suddenly he’s giggling like a small child and I have no idea what’s so funny.
I will very occasionally throw a LegendaryFrog reference into conversation. I’ve only ever had one person get it, but man oh man did it make my day when it finally happened.
I do the same thing with Derrick comedy videos, a friend of mine picked up on it once and that was the time we instantly became friends.