the worst possible situation a single person can find themselves in on a night out. Generally occurs when a relatively attractive female is not fully paying attention to her surrondings and is ambushed by a male that she is not at all interested. After the ambush is sprung, the attacker sucks the other person into a painstaking and dreadful conversation and/or some sort of physical activitiy (like dancing) with possibly no end in sight. A black hole eats up signifigant amount of time for one to scope out and make a move on possible interests.
Audrey:" Hey Rachel how was that godforsaken bar you went to tonight. I think it is called Trinity?"
Rachel:"Yeah thats it. Oh my gosh. I am surprised I got out of there at all. The place was fill with black holes."
Audrey: "Oh well, we both know that place is not known for having quality anything, and we always come back extemely uphappy. DO NOT GO THERE EVER AGAIN!"