Brit. informal <英, 非正式>
mass noun
1- excrement; dung排泄物; 粪。
1.1
- figurative rubbish〈喻〉垃圾; 废话; 胡说：
she can't just churn out any old cack and expect to rake it out.
她不能只是炮制些无稽之谈, 再指望着把它翻腾出来。
词源
Old English （as cac- in cachūs 'privy'）; the verb dates from late Middle English and is related to Middle Dutch cacken; based on Latin cacare 'defecate'.