any dark, wet, persistent stain on a basement floor that resists identification or efforts at remediation, but which generally fades away once the causal bork has been brought into the open for a good airing; any old stain, especially one that is easier to ignore than to do anything about.
Martha and the other girls in the always full Binder were pleased to know that the dank borkum in the cellar would soon dissipate on it's own, now that Mitt had taken the bork away for the short remainder of the Autumn Presidential Campaign tour.
name of a person usually a girl...tends to have unusual qualities such as a big black booty. innocent but has a dirty mind and most comfortable in the nude.
woah dude stop thinking like a borkum!