Meaning of xiā shuō:
瞎说
to talk drivel; to assert sth without a proper understanding or basis in fact; not to know what one is talking about
Tā shuō de gēnběn shì xiā shuō.
他说的根本是瞎说。
What he said is complete nonsense.
Nǐ bù yào xiā shuō, zuì hǎo xiān nòng qīng shì shí.
你不要瞎说,最好先弄清事实。
Don't make statements without basis; it's best to understand the facts first.
Tā gēnběn bù zhīdào fāshēngle shénme, zhǐshì zài nàlǐ xiāshuō.
他根本不知道发生了什么,只是在那里瞎说。
He doesn't know what happened at all, he's just talking nonsense there.