"The Sopranos" imparted valuable knowledge about Italian culture to its audience, but it also taught them the language. In particular, pronouncing "capicola" as "gabagool"

Southern Italian dialect usually drops the last vowel of a word, changes "c" sounds to "g" sounds, and stresses the "o" sound. If you apply this to "capicola," you get "gabagool."

Although the word was not coined by "The Sopranos," it piqued the interest of millions, with many fans adopting and using it, as well as being mentioned in other television shows.