"eloquent and insincere rhetoric," 1915, American English slang; see bull (n.1) + shit (n.), probably because it smells. But bull in the sense of "trivial or false statements" (1914), which usually is associated with this, might be a continuation of Middle English bull "false talk, fraud" (see bull (n.3)).
bullshit (v.)
by 1942, from bullshit (n.). Related: Bullshitted; bullshitting.
雙語例句
1. All the rest I said, all that was bullshit.
我說的其余那些全部都是廢話。
來自柯林斯例句
2. Don't bullshit me, Brian!
別騙我，布賴恩！
來自柯林斯例句
3. Don't try to bullshit me!
休想哄我！
來自《權威詞典》
4. In short, all his rationalizing had been pure bullshit.