AS A JOKE

Japanese Kanji 

冗談に紛らす (to turn it off as a joke), 仮にも (even as a joke, even for an instant), 仮初にも (even as a joke, even in the slightest degree, for a moment), 仮初めにも (even as a joke, even in the slightest degree, for a moment). (various references)

Japanese Katakana 

かりそめにも (even as a joke, even in the slightest degree, for a moment), かりにも (even as a joke, even for an instant), じょうだんにまぎらす (to turn it off as a joke). (various references)

Pig Latin

asay aay okejay.(various references)

Russian 

рассматривать как шутку (treat as a joke). (various references)

Turkish

şaka olarak (for fun, in jest, in joke, jestingly). (various references)