Not too sure what your definition of dark lager is. Sadly, over many decades (centuries in some cases), many brewing terms have been corrupted. This is akin to people who say they are 'booting up' their PC: which is an impossibility (that I won't bother you with the technical reasons as to why) and they mean they are turning it on. Like the term ale in the vernacular when people mean beer: the two being interchangeable, when ale meant a brew without the presence of hops historically as distinguished from beer which had them added.
For the purists who will no doubt want to criticise my response lager simply translates into 'to store' and includes as many diverse beer styles as you will find anywhere in the world. It refers to a process rather than type. No doubt it (dark lager) has suffered the same fate in common speech and reference as in 'booting my computer'. So in short ~ if not using a modern corruption to indicate a specific type but the process instead ~ then the answer would be yes.