a. 开玩笑的

[ adj ]
cleverly amusing in tone
<adj.all>
a bantering tonefacetious remarks
tongue-in-cheek advice

Banter \Ban"ter\ (b[a^]n"t[~e]r), v. t. [imp. & p. p. {Bantered}
(b[a^]n"t[~e]rd); p. pr. & vb. n. {Bantering}.] [Prob.
corrupted fr. F. badiner to joke, or perh. fr. E. bandy to
beat to and fro. See {Badinage}, and cf. {Barter} fr. OF.
barater.]
1. To address playful good-natured ridicule to, -- the person
addressed, or something pertaining to him, being the
subject of the jesting; to rally; as, he bantered me about
my credulity.

Hag-ridden by my own fancy all night, and then
bantered on my haggard looks the next day. --W.
Irving.

2. To jest about; to ridicule in speaking of, as some trait,
habit, characteristic, and the like. [Archaic]

If they banter your regularity, order, and love of
study, banter in return their neglect of them.
--Chatham.

3. To delude or trick, -- esp. by way of jest. [Obs.]

We diverted ourselves with bantering several poor
scholars with hopes of being at least his lordship's
chaplain. --De Foe.

4. To challenge or defy to a match. [Colloq. Southern and
Western U. S.]