1. Wall
    When there aren't any new or exciting lists. "Anything good on Listapp?" "Nah, nothing but wall."
  2. Blister
    It's claimed by some that the origin here is "b list lister," but i don't buy it. A blister is just any listapper who irritates you. They just keep poppin' up. Why do you follow them? Just to feel something I guess.
  3. Listeners
    People who read lists but don't write them. Not pejorative - you learn more listening.
  4. 99
    A list that you like, but you just can't give it the 💯
  5. LM
    You'll see this in the comments a lot, eg "love this. #5 is the LM." It means listmaker, the item that really puts the list over the top