That' what Mooney calls folks who own their aircraft. If you a such an animal, you probably are already a member of MAPA, the Mooney Aircraft Pilots Association. MAPA is a service and support organization for owners and operators of all models of Mooney aircraft.
If you're not already, you can join for a paltry $44.50 per year if you live in the US and $49.50 if you live elsewhere. For that fee you get a monthly publication called "The MAPA Log," access to the MAPA Insurance Program, technical help and support for troubleshooting problems with your plane, and a decal or two.
MAPA holds an annual convention each year as well.
If you want to learn more about owning and operating Mooney airplanes, MAPA is the association to join.