Mind blanker

1/2 oz. Vodka
1/2 oz. Coffee Liqueur
1/2 oz. 7-UP

This drink you want to layer.
Pour in the Kahlua, then float the vodka - DO NOT STIR.
Then top with 7-up.
DO NOT STIR.
Insert a straw to bottom of glass and suck it all down right then
and there.
Crazy stuff eh!!!