Beer which is brewed in Amsterdam. The official name is IJ-beer, named after the river IJ which splits the city into 2 parts. The south, which is cool and the North which has a strong resemblance with 'Middle Earth' (Lord of the Rings). This beer is so strong that it may cause serious drowsiness; hence the name GHB-beer. GHB (gamma-Hydroxybutyric acid) is nowadays a populair (date-rape) drug in Amsterdam, which has the same effect when used correctly.