[quote name='Happy Jack' post='660099' date='Nov 20 2009, 01:17 PM']Without knowing ANYTHING about this subject, when I started reading this I guessed that he meant what we used to call a D.A. or "Duck's Arse", where something kicks up at the end, usually a hair-style.
In that case, he'd be describing a neck that suddenly rose at one end or the other, or possibly just the fingerboard doing it.[/quote]
This is the most likely - a rise at the end of the fingerboard. Come to think of it a duck's tail does look to 'kick up' at the back so the description of duck tail starts to make sense.
Apologies to my regular readers but I've run out of ornathological puns.