Tutti Frutti is not just bubblegum as tutti frutti also means all fruits in Italian, and refers to the amalgamation of fruity flavors which create the signature bubblegum taste.
Although tutti frutti, which is the flavor we know as bubble gum originated as a combination of many different fruit flavors, with strawberry and banana being the most prominent among them.
Bubblegum and tutti frutti are the same flavor.
Tutti frutti is also a specific flavor, but is also commonly used to describe the classic, mixed frutti flavor of regular bubble gum, that is often called tutti frutti outside the United States.
The name of Tutti Frutti also means all fruits in Italian, and refers to the amalgamation of fruity flavors which create the signature bubblegum taste.