The act of revolving your world around Christofer Drew. It's like BieberFever, but instead of Justin Bieber you're addicted to Christofer Drew (Singer of NeverShoutNever!, Eatmewhileimhot!, and Christofer Drew and the Shout!). You have the DrewFlu when you are completely addicted to all of his music and him himself.
I've listened to The Yippee EP at least 1000 times! I think I've come down with a case of DrewFlu!