Cold and very dry.
"There is something about a Martini,
A tingle remarkably pleasant;
A yellow, a mellow Martini;
I wish I had one at present."
"The Martini": in Hollywood slang it's the last shot of the day's work at the movie studio (because the next "shot" is in a martini glass at the Brown Derby, Musso&Frank, or the Tam O'Shanter ; the latter was particularly frequented by Disney animators)