auf wiedersehen
     n : a farewell remark; "they said their good-byes" [syn: {adieu},
          {adios}, {arrivederci}, {au revoir}, {bye}, {bye-bye}, {cheerio},
          {good-by}, {goodby}, {good-bye}, {goodbye}, {good day},
         {sayonara}, {so long}]
Source: WordNet® 2.0