LOL, mine too. Dark Hollow was downtown club below the street level. a real dark hollow and a favorite night spot for many of the guys at Maxwell & Gunter. The band played there, but also at the NCO clubs at both bases, and other places around Monkey town. (Those were my pre-committed Christian days & I mostly try to forget them). Great to “touch base” with someone who was in the same place at the same time. I find it to be a small world.
Sounds a lot like a place called "Quinn's" or something like that. It was an after hours club, everyone had to register on the way in, and no one used their real name. I was probably known to them as just another "John Smith".