Comes from Japanese pai zuri. it is titty fucking a girl. Its just a cute way of saying pai zuri. It is mostly used among the young hip Harajuku girls.
Yuko's tits were so small, Jerry couldnt give her a pizza pai even if he wanted to.
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failureshower.