该习语是一种非正规的口语表达方式，类似的表达方式还有：as easy as anything/as ABC/as falling off a log/as winkling。这些短语指的是“很容易”。
A: Money is hard to earn these days. 这年头挣钱不容易。B: To me, it’s as easy as my eye. 对我来说很容易。A: You steal? Or rob? 去偷还是去抢？B: Of course not. 当然不是。
