This term is an extension of procrastination. It is the act of waiting to work on something, even though everyone around you is working on that very same thing. Instead the individual may play silly games on their phone and distracting others from doing there work. Hence, making "pratiking it" a contagious action.
Teacher: Alright class, let's work on the worksheet I just passed out.
*All students except Billy work on the worksheets*
Joe: Hey Billy quit pratiking it!
the act of smoking marijuana in an automobile while driving. derived from the term "cruise", which then led to "tom cruise", and eventually became "Practicing Scientology"