...a meaningless jumble of words.是什么意思？

...a meaningless jumble of words.

一连串毫无意义的胡言乱语

meaningless

adj. 无意义的，无价值的，“meaning”的派生，无谓；

例句
He would rather have a decent death which served some purpose than a meaningless death.
他宁愿死得其所，也不想无谓地死去。

jumble

vt. （使）混乱，杂乱，使困惑；vi. 纷乱；n. 杂乱的一堆，一团乱，<英>待义卖的杂旧物；

例句
Your old clothes will be gratefully accepted by jumble sale organisers...
旧货义卖的组织者会感激地领受您捐赠的旧衣物。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

words

n. 字( word的名词复数 )，（说的）话，诺言，口令；

例句
She felt as if his words had granted her absolution.
她感觉他的那番话好似给她下了道赦令。