A Caffin, or Caffinpop, is commonly referred as someone who is a little bit out of the ordinary. A Caffin does things just for teh lulz. Caffins are known to go across the nation just to prove a point or surprise someone. Caffins are usually fat otaku who fall asleep while watching anime
You are a Caffin, bro. Stop bein' so weird.
by Wii7036 August 13, 2010