also: たわむれごと · ざれこと
noun
A playful or silly remark, often not meant to be taken seriously. Can be used for light-hearted banter or nonsense talk.
彼の言うことはいつも戯れ言だ。
What he says is always just a joke.
そんな戯れ言を真に受けるな。
Don't take such a silly joke seriously.
Compound of 戯れ (ざれ, 'playfulness') + 言 (こと, 'word'). The reading ざれ is the 連用形 of the verb 戯れる (ざれる, 'to jest'). The alternate reading たわむれごと uses the 連用形 of 戯れる (たわむれる).