Someone who spits the peice of gum they are chewing into the wrapper of their new peice of gum.
"did you see Jake today in fifth period?"
"yeah he went through a whole pack of gum without ever getting up and going to the trash!"
"what a chain chewer."
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi