tongue-in-cheek adv 1: in a bantering fashion; "he spoke to her banteringly" [syn: {banteringly}, {tongue-in-cheek}] 2: not seriously; "I meant it facetiously" [syn: {facetiously}, {jokingly}, {tongue-in-cheek}] adj 1: cleverly amusing in tone; "a bantering tone"; "facetious remarks"; "tongue-in-cheek advice" [syn: {bantering}, {facetious}, {tongue-in-cheek}]