Dutch swear words beginning with the letter Z

Phrase Meaning Is This Accurate?
zakslak small penis ( 'ball-bag snail') (50%)      (50%)
zuig aan mijn ballen suck my balls (100%)      (0%)
Zuig mijn ballen Suck my balls (100%)      (0%)

Dutch 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