Neapolitan swear words beginning with the letter F

Phrase Meaning Is This Accurate?
fa fancul' a mamat' go fuck your mother (17%)      (83%)
Fiet' 'e mmerda You smell like shit (0%)      (0%)
Figlij 'e 'ntrocchia Cunning person (0%)      (0%)

Neapolitan 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