re bachelor party.    There are a lot of funny songs for such an occasion.    I don't know which part of Italy you hail from.   I have a collection from the Alps to Sicily.    From Bari there is "U maritiello.:   From north there is La Dosolina.

From Er tranquilizante nostra e solo il vino
La societa dei mangnacioni

La mugliera, there is also a sicilian version of this song that is very funny