Someone who skips class his or herself, but then chastises you for doing it in a hypocritical manner.
Ashley: Why didn't you go to class today? Slacker.
Brett: I was up all night, nurturing my newborn son. What did I miss?
Ashley: Grow up Brett, get the notes from someone else. I can't stand lazy people.
John: Hey Ashley! Hi Brett! Why weren't you guys in class today?
Brett: Wait... Ashley wasn't there either?! YOU SKIPOCRITE!
(Ashley runs away, crying).