This term can be used to describe someone who is a cock blocker for life, usually due to depression caused by no sex life. Even if you are incredibly skilled at picking up women this kind of person can still somehow make a girl leave. They usually have no clue that they are causing a problem, resulting in intense aggrivation. Try to avoid them, even if they are a friend of yours.
Dude, she just walked away. Franklin is the biggest downjouster EVER.