Wiktionary
out of touch
a. 1 (context idiomatic English) No longer maintaining contact or communications. 2 (context idiomatic English) No longer conversant with something, especially facts, reality, world; not aware or realistic.
Wikipedia
Out of Touch
"Out of Touch" is a 1984 song by Hall & Oates. The lead single from their 1984 album Big Bam Boom, it was their last Billboard Hot 100 number one, topping the Billboard Hot 100 for two weeks in December 1984. It became the duo's fourteenth consecutive top 40 hit since 1980.
The song often segued from "Dance on Your Knees" which is the opening song of the album. The music video also contains the "Dance on Your Knees" intro, which segues into an edit of the 12" remix version.