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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Porker's pen:

STIES: Porker pens
STY: Porker pen
PIGSTY: Pen for porkers
STY: Porker's pen
STIED: Penned like porkers.
STY: Pen for porkers
STIES: Pens for porkers