What does "It is kind of on the way out" mean?

[Saneta]

English Language Tests, Intermediate level

ESL/EFL Test #279 "English Slang Idioms (1)", question 9

"I don't think we will hear that song on the radio as often anymore. It is kind of on the ......... out," his buddy said to him.

(a) close
(b) shut
(c) way
(d) put

English Language Tests, Intermediate level

ESL/EFL Test #279 "English Slang Idioms (1)", answer 9

"I don't think we will hear that song on the radio as often anymore. It is kind of on the way out," his buddy said to him.

Correct answer: (c) way

Your answer was: incorrect
"I don't think we will hear that song on the radio as often anymore. It is kind of on the shut out," his buddy said to him.
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it is kind of on the shut out? what does this expression mean? thanks:)

[Skrej]

If something is 'on it's way out', it means that it's becoming unfashionable or unpopular.

The idea is that something is on it's way out the door, i.e. leaving.
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[Torsten]

[Alan]

Hi,

Just a nitpicking comment - it should read 'on its way out'.

Alan
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English as a Second Language
You can read my ESL story A day in the life of a policeman