Answer: tongueincheek

AnswerCrossword Clue
TONGUEINCHEEKInsincere
TONGUEINCHEEKFacetious
TONGUEINCHEEKNot serious
TONGUEINCHEEKLike a whimsical remark
TONGUEINCHEEKWith whimsical irony
TONGUEINCHEEKAttitude of whimsical disbelief.
TONGUEINCHEEKWithout sincerity.
TONGUEINCHEEKWith irony or whimsy.