different toilet, same shit點解

不是。
It is a slang widely used the Eastern part of the US.
It is a remark on the repetitive, boring nature of life 美國東岸俚語=一般閒談時, 用於批評生活重複乏味, 沉悶。
Example:
A: What have you been up to?近來怎樣了?
B: Oh, you know, same shit, different toilet.噢,還是過着那苦悶重複的日子啊。