perhaps there is a shred of truth that mom says she put her on the couch at 0530. Perhaps, tho, she wasn't alive when she did it.
sorry to be disgusting like that....
Also, I agree that this mhp would most likely be connected to the sewer system and the "sewage" problem in the home is due to those living there... mister nursebeeme worked as a maintenance dude in college at the apartments we lived in and you would not believe the things that college coeds would flush down the toilet!!! He once pulled a shampoo bottle out of one..
If the toilet was backed up/overflowed that could also lend to the terminology sewage...