To all friends round the Wrekin.
A mode of drinking to all friends, wheresoever they may be, taking the Wrekin as a center. The Wrekin is a mountain in the neighbourhood of Shrewsbury, seen at a great distance.
A phrase I believe is still in use today! From the Shropshire section of A provincial glossary: with a collection of local proverbs, and popular superstitions. Francis Grose (1790). Online at Google Books.