poshy

adjective2

1. •
   (informal) Posh.

   • North Ryde was open, real poshy people used to be there. — 1999
2. •
   (no longer used) Of land: sticky, clayey, binding.

   • Plant shrubs and trees, deciduous or evergreen; but avoid a poshy state of the land, if it be binding or clayey. — 1849