[The First Aria]

Not sure what the term "deadname" means, but assume its another UK'ism.  Ya know, like Lift for elevator, and flat for apartment and other non American English stuff.  Oh well, sounds like you had a decent time anyways.

nope, it`s a fairly global term in the trans community, it`s when someone uses your pre-transition name instead of your now Legal name.

http://gender.wikia.com/wiki/Deadnaming
[url=http://gender.wikia.com/wiki/Deadnaming][/url]

ahhhh.....
Gotcha!