Obviously you’re not supposed to drink oj after mouth wash or brushing you teeth but it’s become a meme at this point because of how bad food usually tastes after such a strong minty flavour.

A palate cleanser by definition is something you take before eating something to prepare your mouth/tastebuds. So saying that the mouth wash is a palate cleanser implies that you intend to use it to prepare your tastebuds for ramen by coating your mouth with a minty aftertaste.

> Also, if you take a sip of water after rinsing your mouth with mouthwash and swish it around, the taste is practically gone.

Now that is a palate cleanser