with your tongue in your cheek
US /wɪð jʊər tʌŋ ɪn jʊər tʃiːk/
UK /wɪð jʊər tʌŋ ɪn jʊər tʃiːk/

1.
dengan nada bergurau, secara ironis, tidak ikhlas
said or done in an ironic, insincere, or facetious way
:
•
He said he loved my new haircut, but I think he said it with his tongue in his cheek.
Dia kata dia suka potongan rambut baru saya, tapi saya rasa dia mengatakannya dengan nada bergurau.
•
The comedian delivered his political jokes with his tongue in his cheek.
Pelawak itu menyampaikan jenaka politiknya dengan nada bergurau.