Those two are incessantly flattering one another. They've formed an utterly nauseating mutual admiration society!

And the said members did accordingly resolve themselves into a little "mutual admiration society" for the entertainment and benefit of their visitors.

The note is from a special friend of yours; indeed I think you form a little mutual-admiration society.

Vandeloup smiled at this, and came to the conclusion that the Wopples family was a mutual admiration society.

If you don't want a mutual admiration society, which dies as soon as you've all discovered each other's faults, you must nobble the Press.

Joe DiMaggio and Willie Mays had a mutual admiration society and the Clipper was happy to put his respect into writing.

Mutual admiration society

Meaning

Noun