A pen, or sty, for pigs.

a pen for swine

a fence used to keep a pig in a farm Pig-pen is the name of a character in Charles M

pigsty

Pigpen is a 1969 Italian language film, directed by Pier Paolo Pasolini and starring Jean-Pierre Léaud, Marco Ferreri, Ugo Tognazzi, Pierre Clémenti, Alberto Lionello, and Anne Wiazemsky. Cinematographer is Tonino Delli Colli.

Personal experience, with photos and cake.