“Lie Fallow” means “in your spare time, without a prior appointment” in Engrish.
Everybody loves Engrish, the surreal dialect of English found on signs, in menus, on clothing etc. in the Far East. Much of it seems to stem from blind over-use of dictionaries, where the non-Anglophone user picks one of the possible translations of a term at random. Here are a few examples I’ve caught recently at restaurants.
The breakfast menu at our hotel in Hecheng had some fine variations on rice porridge and its condiments.