Mrrzy, 'greeting' means 'crying' or 'weeping' up in Scotland.
Full translation: "Miss, about my son: He won't be coming to school today, he's not feeling well. He's always lying on the floor crying."
I was as puzzled as you during my first few weeks of teaching in Glasgow, but soon I started to speak 'Broad Glasgae' myself and had quite a strong accent.
When I eventually took up a post down in Norfolk, everyone found my accent hilarious. I soon learned to speak 'Broad Norfolk' (and still do a lot of the time!)