Definition of pie-dog:
(n) :
A type of pastry that consists of an outer crust and a filling. (Savory pies are more popular in the UK and sweet pies are more popular in the US, so "pie" without qualification has different connotations in these dialects.)
(n) :
Any of various other, non-pastry dishes that maintain the general concept of a shell with a filling.
(n) :
(Northeastern US) A pizza.
(n) :
A paper plate covered in cream, shaving foam or custard that is thrown or rubbed in someone’s face for comical purposes, to raise money for charity, or as a form of political protest; a custard pie; a cream pie.
(n) :
(figuratively) The whole of a wealth or resource, to be divided in parts.
(n) :
(cricket) An especially badly bowled ball.