An insult that is given when one is of a disgusting nature. 'Pigger' is derived from pig and snonk is the noise emitted while expelling mucus from one's nose. Typically, this insult is given in the lower age group of 6 - 12 years old.
Ewww gross! You Piggersnonk!
You friggin piggersnonk did you just eat that mucus you expelled on to the floor?
The smegma (cock cheese) of a male of Italian ethnicity. It's a play-on-words based on a combination of the words "pecker" (cock, dick) and the Italian cheese "pecorino romano".
"Wow, my boyfriend Guido had some major peckerino romano action going on his dick last night when he had me give him a blow job."