A person that spends a keen amount of attention and energy on knowing the ingredients of their liquor, the proper preparation of cocktails and finds great enjoyment in top-notch ingredients and exemplary preparation in addition to back story and knowing the brewers, distillers and bartenders who create those drinks.
A libationist is not necessarily a drink snob, only enjoying specialty and/or liquor items difficult to obtain and/or expensive drinks; though, that is a variety of libationist and probably the most common or at least easy to spot in a bar.
Because he was a libationist, he liked to collect orphan barrel bourbons and only drink them on special occasions.
A Sex act where a girl, usually but not nesisarily wareing leather chaps and a wip, has sex with six guys in an old un-painted 16 foot aluminum rowboat on a small pond, in upstate New York, while waving sparklers in the air with both hands, trying to impress her co-workers who are standing at the edge of the pond drinking beer, and wishing they never came to the party.
Girl: "So i'm having a party this forth of July. Who wants to come?"