noun
Colloquial term for a pachinko parlor. The パチ part is a shortening of パチンコ, and 屋 is a common suffix for shops or establishments.
あのパチ屋はいつも混んでるね。
That pachinko parlor is always crowded, isn't it?
駅前に新しいパチ屋ができた。
A new pachinko parlor opened in front of the station.