Taken from days of yore when being an unwed mother carried a high tariff.
To pie someone off would be to disregard them or treat them with disrespect. The person speaking feels like they’ve been made to look like the equivalent of a used cum receptacle and nothing more. “Pie” is taken from the term “cream pie” which leads to pregnancy. To pie someone off would be the same as using them or discarding of them as if they were simply some unfeeling flesh hole.
“Barry the builder was supposed to be here at 10am, he’s reallypied me off!”
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)