To avoide doing or even thinking about something you want to do very much. The main reason for not doing it is fear of guilt or losing the respect from a parent or peer. In fact, you make yourself believe that you really don't even want to do the thing you are repressing.
Shasha: "Cindy, do you want to go clubbing and get wasted? Maybe we will pick up some guys."
Cindy:" No, my mom won't approve and dancing and guys shouldn't be appealing to me anyway. I think I will stay home, knit and drink water. Yeah! that sounds much more fun!"