I've seen the term Dahonesque used to refer to some folding bikes, what does it mean? What is the connection between "Dahonesque" bikes and the Dahon company?
Dahon is an American bicycle company founded in 1982 by David T. Hon (Da Hon). They are famous for their folding bikes, which are manufactured overseas.
Dahon officially markets under its own brand name as well as through affiliated brand names such as Yeah, Biceco, and Novara.
But in the years after the Dahon came out, people noticed that very similar-to-identical folding bikes were being sold under other (often unknown or house) labels. These were often not the newest models, but a generation older and with some changes such as different grips, locking mechanisms, or gearing.
It's unclear whether Dahon officially licenses their older designs to other companies to market under their own names; whether these are "excess" but official frames that have been repurposed or made during a "ghost shift"; total rip-off designs using the original plans; or, simply "inspired" by the Dahon design. Given the variety from perfect-clones to off-copies, most probably all of the above.
Because of the family connection and resemblance to Dahons, these folding bicycles that appear to use the original Dahon designs are called Dahonesque.
Note 1: some people also use the term Dahon-clone to refer to exact copies.
Note 2: The Tern Company was founded by the wife and son of David Hon (the Dahon founder). The first Terns were definitely Dahonesque, but recent models show considerable genetic drift, perhaps enough to make them their own species.
Finally, let's play, Spot the Real Dahon!
From top to bottom: Dublin Explorer (a £99 copy); the real Dahon Curve; the Fnhon VG2018 - an unlicensed clone; the real Dahon D9.