To what does this refer?
Absinthe?! I think the phrase is just used as a language exercise for colours and adjectives.
to some particular drink that has green colour
I listened to this one over and over again. My correct translation was so weird, I mean "the GREEN drink," that I was sure that I was hearing wrong!
A friend of mine made me aware of the liqueur "Crème de menthe", which is green and figures in the Outlander series.
And allegedly no Scotsman drinks it.
Reminds me of that one episode of Star Trek where Mr. Scott's drinking with an alien and he gets so drunk that he can't remember anything about the drink he got out except, "It's... green," lol.
Ecto Cooler by Hi-C!