I would assume that at this point you know what we're talking about...
Absinthe is a green colored highly alcoholic beverage with a bitter punch, which mainly comes from Artemisia Absinthium.
Its alcohol content may vary from 45% to up to 89% in some French varieties. This massive amount of alcohol, coupled with the stories of toxins present in the beverage's composing herbs has led to banning of this preparation in several countries.
Artists of late XIX and early XX century, such as Wilde, Van Gogh, Baudelaire, Manet, Picasso, Degas, Hemingway, among others were Absinthe consumers, as they stated it induced artistical inspiration.
It is believed that Van Gogh, drunk with Absinthe, cut his own ear and gifted it.
There is a ritual for drinking it, which I will link in the below video:
Hope you enjoy it!