I think there ought to be like Old Bank Slavonic, Old Restaurant Slavonic, Old Barbershop Slavonic, or Old Drugstore Slavonic...
At the very least, there should be Old Sawmill Slavonic.
Or, if you need cusswords, Old Bathroom Slavonic! YES THERE CAN BE INDIVIDUAL ROOM SLAVONICS. Hungry? Old Kitchen Slavonic! Yiffy? Old Bedroom Slavonic! In the mood for a game of foosball? Old Den Slavonic! Want to talk about cars? Old Garage Slavonic!