Get a short glass, throw some ice cubes in, add 1 shot of Bacardi Razz and top it off with some Sprite or 7up. Add a straw if desired.
::NOTE::
A chilled glass may work in place of ice cubes or with the ice cubes but i havnt tried that.
Tried it first time in a club in Canada. Has a sweet taste, may work well with Coke or Pepsi too.