Lungo (Italian for "long") is a coffee beverage made by using an espresso machine to make an Italian-style coffee – short black (a single espresso shot) with more water (generally twice as much), resulting in a larger coffee, a lungo. ... In French it is called café allongé. A great shot of coffee extracted all the way to the full cup. This is not for the faint hearted. Fully Caffeinated to the brim but with it comes the expected bitter taste of coffee fullness, 8oz.