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

1.
com a língua na bochecha, ironicamente, de brincadeira
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.
Ele disse que adorou meu novo corte de cabelo, mas acho que ele disse isso com a língua na bochecha.
•
The comedian delivered his political jokes with his tongue in his cheek.
O comediante entregou suas piadas políticas com a língua na bochecha.