Pawpaw Tree : a tree that needs some attention.
Hasbeenealogist – a person who no longer gets asked to speak at conferences.
Thanks to Caroline Gurney for this one http://cmgurney.blogspot.com.au/2011/03/genealogisms.html
I would add persons who should no longer speak at conferences.
Genearosity – Kindess and consideration in the genealogy community
First mention I found was in 2002 from Janice Tanner on http://www.genealogy.com/genealogy/users/t/a/n/Janice-Tanner-/index.html
then in 2004 from Sharolyn Redfern in South Africa
#Twitterstorians : a Hashtag used on Twitter to describe historians who tweet. (I stand to be corrected)