To fabricate something out of thin air; to invent or concoct without any factual basis.
那些关于他的谣言完全是凭空捏造的，没有任何事实依据。
Those rumors about him were completely fabricated out of thin air, with no factual basis whatsoever.
Next Idiom
To fabricate something out of thin air; to invent or concoct without any factual basis.