Not to be using this in a braggatory way or anything, but I'm a little more equipped to handle these things than Dixon.
1999 February 21, Mike B., “Re: Fill Me In on This Flame War”, in alt.autos.corvette[1] (Usenet):
God forbid he use a name that is not braggatory... had to be something like "richboy", "sexmachine", "tootoughforyou" or "godofeverything" […]
2012, Katie Appenheimer, Crownless: Tales of the Banished, AuthorHouse, →ISBN, page 164:
Feeling particularly good-natured, Thera gave Alannah a sporting chance before out-distancing her, following that up with a braggatory lap around the cabin before Alannah reached it.