I told my teacher that I wanted to start writing something for each class so that I could practice the stuff I was learning. Something like a diary if you will. Jokingly, she asked me if I was going to be a <Japanese phrase that I forgot> and when I asked her to explain she said that the phrase was used to describe people who say they are going to do something periodically but just do it once and then quit.
For the life of me I can't find what the term was in my notes. Does anyone know what I'm talking about?