idiots

n. fool, dunce, simpleton; person who is severely mentally handicapped

Idiot is a word derived from the Greek , idiōtēs ("person lacking professional skill," "a private citizen," "individual"), from , idios ("private," "one's own"). In Latin the word idiota ("ordinary person, layman") preceded the Late Latin meaning "uneducated or ignorant person." Its modern meaning and form dates back to Middle English around the year 1300, from the Old French idiote ("uneducated or ignorant person"). The related word idiocy dates to 1487 and may have been analogously modeled on the words prophet and prophecy. The word has cognates in many other languages.
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Noun
1. a person of subnormal intelligence
(synonym) imbecile, cretin, moron, changeling, half-wit, retard
(hypernym) simpleton, simple

adj. idiotic, stupid, imbecile; half-witted, silly, mindless, daft; fatuous, footless; lunatic, nonsensical, pointless

da4 ben3 dan4
Big stupid egg!
You fool!

xi3 zhai2 wang4 qi1
Moving house and forgetting to bring the wife.
This is said of a foolish and forgetful man. As stupid as a donkey.

yu2 bu4 ke3 ji2
Couldn't be more foolish!
Referring to hopelessly stupidity.

yu2 zhe3 qian1 lyu4, bi4 you3 yi4 de2
In a thousand schemes, even the greatest fool must be able to find some truth.
Compare with 智者千虑，必有一失 (zhi4 zhe3 qian1 lyu4, bi4 you3 yi4 shi1).

yan3 er3 dao4 ling2
Plugging one's ears to steal a bell.
To deceive oneself. The cat shuts its eyes when stealing cream. Alternative form: 掩耳偷铃 (yan3 er3 tou1 ling2).

ci3 di4 wu2 yin2 san1 bai3 liang3
No three hundred taels of silver hidden here.
This expression is used to describe a person who tries to conceal or cover up something, but gives himself away by the act.

chi1 ren2 shuo1 meng4
A fool telling about his dream.
To talk complete gibberish and nonsense.