Spexit or Sexit ?
Some of the better ones were:
Outstria
Czechout
Extonia
Fraurevoir
Berlout
Quitaly
Leavia
Polskeddale
Departugal
Espanope
Sweparture
Gotta stop...I'm killin' myself here.
Bet you don't even need a key for which country each is for.