To drink or to get drunk off of an alcoholic beverage of some kind, usually Pimm's.
Nothing to do with the scandalous sexual activity mentioned under swally
and should not be confused with this, the Lady of the House would disapprove of such a thing.
Do you want to consume some swalley while playing boules on the front lawn my dear friend, il shall send for some swalley at once via carrier pidgeon. Do you have a flag?