's house; 's home; 's place
Colloquial suffix attached to a person's name or a pronoun, derived from 〜のうち. Used in casual speech to mean someone's house or home.
今日、太郎ん家に遊びに行くんだ。
I'm going to hang out at Taro's place today.
明日、俺ん家に来ない？
Wanna come over to my place tomorrow?
Kanji-only spelling is rare and may be misread as いえ or うち; usually written with the leading ん.
Contraction of the possessive particle の and うち (house/home). The ん is a colloquial reduction of の, and ち is a shortened form of うち.