Strongest Swearwords In Your Language.

we got some bad ones:
Kut: Vagina, Cunt
Tering: A Disease
Tyfus: Idem Dito
Kanker/kankerlijer: Cancer/ Cancer Sufferer
godverdomme: God damn it
Schijt: Shit
Longlijer: uuuh, dont really no, pretty the same as Cancer

still got a few though
 
i forgot:

missgeburt ... hmm not well born... freak, monster..
(betriebs-)unfall ... accident (if ya weren't planned by ya parents)
 
Go to Puerto Rico and go up to someone, particularly a cafre, and say "aye mamavicho". Just try it lol.