A Quick Fuck is a layered shooter made from one part coffee liqueur like Kahlua

Kahlua

Kahlua may refer to:* Kahlúa, a Mexican coffee-flavored liqueur* Kahlua , an implementation of the Lua programming language for Java ME...

, one part cold Midori

Midori liqueur

Midori is a bright, green-coloured, muskmelon-flavored cordial made by Suntory. It is manufactured in Japan, Mexico and France, though it was made only in Japan until 1987. It was first concocted in 1978, with a launch party held in New York's famous Studio 54....

 liqueur

Liqueur

A liqueur is an alcoholic beverage that has been flavored with fruit, herbs, nuts, spices, flowers, or cream and bottled with added sugar. Liqueurs are typically quite sweet; they are usually not aged for long but may have resting periods during their production to allow flavors to marry.The...

 and one part Baileys Irish Cream

Baileys Irish Cream

Baileys Irish Cream is an Irish whiskey and cream based liqueur, made by Gilbeys of Ireland. The trademark is currently owned by Diageo. It has a declared alcohol content of 17% alcohol by volume...

. The Baileys is poured off the back of a bar spoon so it "floats" on top of the Kahlua in a shot glass

Shot glass

A shot glass is a small glass designed to hold or measure spirits or liquor, which is either drunk straight from the glass or poured into a mixed drink....

. Then slowly layer the Midori on top of the Baileys. Note that Baileys does not have to be used; any type of Irish Cream

Irish Cream

Irish cream is a cream liqueur based on Irish whiskey, cream, and other ingredients such as coffee, which can be served on its own or used in mixed drinks or as part of a shot or a whole shot. Irish cream is very popular in the United Kingdom and the United States. Irish cream typically has between...

 will do.

There are special machines that can prepare a Quick Fuck (or other multi-layered cocktails) in only a few seconds, but an experienced bartender usually relies on the traditional, hand-made preparation. Cocktails with horizontal layering, like the Quick Fuck, are called "Pousse Café

Pousse cafe

A pousse-café is a style of layered drink prepared by gently adding each ingredient from densest to least dense in order to create colored stripes when the drink is viewed from the side. Some bartender guides list a drink containing, from bottom to top, grenadine, yellow chartreuse and green...

". This method of preparation is called "building," as opposed to blending or shaking; thus, Quick Fucks are "built."