Adjective; an English term to describe something that is unfavorable.
To stand someone up, to give up on plans.
I was going to meet Liam for dinner, but he pied out on me.
I'm too tired to go anywhere. I am going to have to pie out and go home.
When a male ejaculates in his partner and fills them with semen. A third person then licks the orifice clean.
Last weekend, I was on the out in an in and out pie