Any place in a social environment where the male to female ratio is worse than 50:1. Similar to sausage fest. The main difference being that the one female, that is present, who is clearly a 3 out of 10, thinks she is a 9, because the 50 guys are hitting on her, out of sheer desperation, until they move on to the next place where there are plenty of good looking women, and when the 3 moves back to that place she now realizes that she is a 3 and is ugly as hell.
Dude, there's like one chick here. This place is a total Camp Hansen. Let's find somewhere else.