Some Italian words that begin with a "b" sound present themselves in Neapolitan with a "v" sound. This could be influenced by huge Spanish influence on Neapolitan and the lack of distinction between the two sounds in Spanish. Examples:

'o vraccio - arm (italian = braccio)

'o vocca - mouth (italian = boca)

Some sayings and phrases also seem to be influenced by Spanish:

vienica - come here (italian = vieni qua or vieni qui) vs. (spanish= ven aca)

ammantecà-ò-aje - to butter (italian = burro) (spanish = manteca)

guapparia - arrogance (likely from spanish = guapo, meaning handsome)

guappo - thug, bully, camorrista