Thread:MondlichtPanda/@comment-37484301-20190513200935/@comment-3452092-20190524135934

Huh. Never seen either of those things before. "SO" I've seen to mean "Significant Other" or some military officer (not sure what it actually is in that context, but I've seen it a lot or at least heard it a lot). And I've never seen sth in any context, but had I tried guessing I would have thought the s replaced a number such as 4th, 5th, etc.