According to http://www.attackartist.com/Artist-Block.html artists block is a condition, primarily associated with any visual art hobby or profession, in which an artist loses the ability to produce any new work. The condition varies widely in intensity. It can be as minor as the difficulty to start or finish a project or task in hand. At the other extreme, some blocked artist’s have not even been able to start or complete any work for years on end. Some have even abandoned their passion and careers.
So basically it is when an artist can’t think of any ideas, I am struggling with this but it’s not to the extreme. Please stand by while I am trying to think of ideas of what to draw so I can upload them.