P.D.I.F
A fancy way of saying 'I don’t eat.' Used by people who think food is a punishment. It’s also a way to be annoying.
She used P. D. I. F. and didn’t eat. I used it and ate a whole cake. I’m the winner.
My friend used P. D. I. F. and cried. I used it and ate a whole pizza. I’m the winner.
He texted me P. D. I. F. and then ordered a pizza. That’s a loss.