Refers to the comics section of the newspaper. Was a light hearted way to say goodbye, see you later, in the 1920s through WWII. Not derogatory at all. Could be used with a friend or casual acquaintance. Just a breezy way to say our lives are crazy, like the characters in the comics. Our lives are funny/ironic/interesting I wouldn't be surprised if someone started writing a comic strip based on us. I'll see you around, just as likely in the funny pages as anywhere else.
It refers to the comics section of newspapers (the part that you prefer or the only one that you read...)
-> To say bye to somebody that you find interesting and funny. You really enjoyed her/his company and want her/him to know it.
At the end of a party, when your new friend leaves :
"LOL ! See ya in the funnypapers !"
