There was a great actor(comedy) called Alberto Olmedo and he made a new language called Rosarigasino which consist in adding 'gas' after the strong syllable in a word. For example in the word Rosario the strong syllable is 'sa' so that word in rosarigasino becomes Rosagasario.
So as you can guess Rosarigasino it's just Rosarino which means 'from Rosario'.
ROSARIO "Flag´s Cradle"
This is the city where I was born and where I actually live, it´s a very nice place and what I like the most is the fact that when I walk through the streets I can feel the passion of the people, I see their faces and they all look familiar to me then is when I actually know I´m home...
Is the second largest city in Argentina with over 1,000,000 inhabitants. It is in the south of the province of Santa Fe along the shores of the Paraná river about 185 miles northwest of Buenos Aires. Founded at the beginning of the 18th century, Rosario possesses a rich history. It is an industrial, commercial and business hub situated in the key agricultural and livestock producing region of the country. It has access to the Atlantic by the river system of the Hidroway Paraguay-Paraná and the Río de la Plata. As you would expect for a city of this size, there is a wide selection of hotels, restaurants, discos, theaters, pubs, car rentals and direct flights, roads and train service linking it to Buenos Aires and other cities of Argentina.