Flemish (Belgium) swear words beginning with the letter V

Phrase Meaning Is This Accurate?
Vetzak Grease sack (67%)      (33%)
Voale zwetzak dirty nigger (51%)      (49%)
vortzak dirty-ass guy (43%)      (57%)

Flemish (Belgium) Swear Words by Letter:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z