I saw a beauty my brother invented which was given no name at the time but which I shall dub the concrete mixer.

1 part vodka
1 part tequila
1 part ouzo

add lemonade. The less currently inebriated amongst you will have noticed that these are all clear drinks.

The drink knocks even seasoned alcoholics for six. It also leaves a hard, grey crusty residue on the glass that is like concrete, hence the name. It leaves a similar residue on the brain.