This acronym came from Randy Seaver. It may be in common use but I had not heard it before.
MRUA: Most recent unknown ancestor which Randy explained “ is the person with the lowest number on your Pedigree Chart or Ahnentafel List that you have not identified a last name for, or a first name if you know a surname but not a first name.”
In a tweet on 12 December 2016 Andrew Martin mentioned the conflicts he has between his two hobbies: gym work and genealogy. He coined the phrase Gymnealogy to describe times when these two activities can be undertaken simultaneously eg watching a webinar or participating in a hangout from an exercise bicycle or treadmill.
Quite a while ago my genimate Carmel Galvin reminded of a phrase my Dad used quite regularly. Most Australians would know that Kick the Bucket is a euphemism for dying and I know it is used by our English cousins. Is it a term commonly used in other parts of the English speaking world?
An article in Wikipedia examines theories behind the origin of the phrase.