Some people have asked how I came up with this name since it technically extends a slide and not a trombone. The short answer is that I didn’t want to call it something that would conflict with other products.
There are lots of other items that have slides in them like drawers, for example. There is a invention that I think is an extending RV called Extendaslide. The search term also brings up information about guns. Needless to say, I didn’t like the idea of being mixed up with other products and having to fight for top billing in a google search. So, Extendabone it is!
It’s short, easy to remember, and uses the nickname we all know and love for a trombone.