Lady friend是个故意模棱两可的用语
指关系不到girlfriend的程度,但却好于friend;没有mistress或lover那种明显的性意味。通常作为委婉语(euphemism)使用,或者在情况不明的情况下作为一种保守的提法。Lady friend也用于指女方明显大于男方的情侣关系。
eg: A millionaire took his lady friend to dinner. He told her he had eaten in the finest restaurants in the world and assured her this place served the best.