my favourite is ''tering'' sounds like: earring +t. it's a medieval disease, and I don't know how to translate it.. but I think it's black plague.
in dutch, you can use everything to swear with, so be creative!

you can choose any disease for example:
''rot op met je tering kop!'' = fuck off with your [medieval disease] face!
''rot op met je kanker harses'' = same, but with cancer.
''rot op met je tyfus bek'' = same, but with tyfus.
''krijg de tering!'' = die of [medieval disease]!
''krijg de kanker!'' = same, with cancer.
''krijg de tyfus!'' = tyfus.
''teringschool'' = [medieval disease]school.
''kankerschool'' = cancerschool.
''teringlijer'' = someone who carries this disease.
we are extremely rude, so we often use far worse cusses than these
