2003 January 26, Peter Ellis, “Re:[I] Is Long, Was Bowling for Columbine”, inalt.fan.pratchett[1] (Usenet):
And, for the avoidance of doubt among the slower portion of the readership, I don't *actually* believe the monobrow to be a criminal indicator. That, of course, is the sole province of the tribrows like myself, monstrous offspring of a monobrow andbibrow parent.
2005 August 10, Matt Silberstein, “Re: What Darwinism is good for.”, intalk.origins[2] (Usenet):
[> He would be more likely to have children with unibrows or good thick eyebrows, until one day there would be a whole unibrow race.] What do you think would happen ifbibrow people tended to die before they had children and unibrow people tended to survive?
2010, Molly Patton,Just South of Normal, Lulu.com,→ISBN, page239:
Now he was taller, more muscular, and he'd let his hair grow out quite a bit – it was brown and curly, like Davin's, only Hunter's was longer. And the unibrow had graduated to abibrow, with an ample amount of hairless skin in between.