living apart together: refers to a couple who are in an intimate relationship but live in separate homes
Researchers have coined the phrase “living apart together” or LAT relationship to describe the unconventional set-up that is growing more popular among people of all ages.
Submitted from United Kingdom on 05/01/2012
LAT
adjective
From our crowdsourced Open Dictionary
living apart together: an acronym used to describe couples who are in a committed relationship but live in separate buildings
LAT couples may live near each other, or far apart.