Fachidioten
Fachidiote
PEJ
Fachidiot
spécialiste cantonné dans sa matière
nerd blinkered specialist
especialista que se confina na sua matéria
mat deem Fachidiot kanns de nëmmen iwwer säi Beruff schwätzen
https://lod.lu/uploads/examples/OGG/c6/c6a80bd75ddfd39757f23175a1dad1aa.ogg
https://lod.lu/uploads/examples/AAC/c6/c6a80bd75ddfd39757f23175a1dad1aa.m4a