Groon - meaning and definition. What is Groon
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What (who) is Groon - definition

1970 STUDIO ALBUM BY KING CRIMSON
Cat Food (song); Groon; In the wake of poseidon; Cat Food/Groon; Pictures of a city; ITWOP

Groon         
A hybrid verb combining groove and groan = To find oneself involuntarily humming along to the muzak in a lift, supermarket etc.
Grooning to the muzak from a speaker in a shoe rack.. (from Cat Food by King Crimson 1971

Wikipedia

In the Wake of Poseidon

In the Wake of Poseidon is the second studio album by English progressive rock group King Crimson, released in May 1970 by Island Records in Europe, Atlantic Records in the United States, Philips Records in Australia, and Vertigo Records in New Zealand. To date the album is their highest-charting in the UK, reaching number 4.

The album was recorded during a period of instability within the band owing to a fluctuating lineup. It follows a very similar musical style and track sequence to their first album, In the Court of the Crimson King. The album was well-received by contemporary critics, who commended the overall execution and production quality as an improvement over that of the band's debut. However, later assessments have faulted its heavy reliance on the template established by its predecessor, and generally deem the album inferior.