Soldato
After realising OP is 77 it doesn't seem as odd now apart from the cee u next Tuesday bit but I find it rather amusing picturing an old woman (this may be an assumption) shouting that at her grumpy husband
If she were sufficiently old, then it wouldn't even be a rude word to her. I mean, it was good enough for Chaucer! It's just old Anglo Saxon. It only became vulgar (which literally means common) when the Normans had everybody speaking Old French. The Upper and Middle Classes didn't want to sound common so they avoided old Anglo Saxon terms. The Working Class meanwhile, just carried on talking how they always did. It's about class.
Anyway, I'm a programmer. I'm not sure it would be possible to code effectively without swearing.