Kept in a pigpen

• Penned a pig
• Penned, as a pig
• Kept on the farm
• Housed like a pig
• Housed in a pen
• Put in a pen

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sty \Sty\, v. t. [imp. & p. p. Stied ; p. pr. & vb. n. Stying .] To shut up in, or as in, a sty. --Shak.

Wiktionary Word definitions in Wiktionary
vb. (en-paststy)

WordNet Word definitions in WordNet
See sty