it means open for buisness ( adult fun only)
This was once an old fashioned way to let men of the world know where a ********** was. In some places in the world, once you knew where it was a potplant in the window let the men know if they were open for business in the daylight hours of the day.
That they have cherry cheesecake inside...
Um you tell me ☺ too bad it wasn't a black bulb.
Hey, baby, c'mon in. And I DO mean IN.
It's Christmas time?