The term 'OOH Companion' is a job title for someone who provides companionship to people who are elderly, disabled, or otherwise in need of assistance. The acronym 'AAH' stands for 'Activities of Daily Living' which is a term used to describe the basic activities that people need to do in order to live independently. OOH Companions provide assistance with these activities, such as helping with meals, providing transportation, and providing emotional support.