
1) English-language idiom 2) Like a whimsical remark 3) With irony or whimsy 4) Without sincerity
Found on
https://www.crosswordclues.com/clue/tongue-in-cheek

Tongue-in-cheek is a figure of speech used to imply that a statement or other production is humorously or otherwise not seriously intended, and it should not be taken at face value. The facial expression typically indicates that one is joking or making a mental effort. In the past, it may also have indicated contempt, but that is no longer common....
Found on
http://en.wikipedia.org/wiki/Tongue-in-cheek
No exact match found.