housepig means A pet pig that is usually kept indoors in one's home. Lexicurio rates it Sui generis — a strength score of 92 out of 100.
Etymology
From house + pig, modelled after housecat, etc.
noun
- A pet pig that is usually kept indoors in one's home.“Turned out Mr. Punkins took a shine to Marty after all, and now, in addition to having a housecat, Heavenly Hills had a housepig.”