An example of spaghetti is a pasta dish made of long strings of pasta and tomato sauce.uncountable). 1  A type of pasta made in the shape of long thin strings. 2  A dish that has spaghetti as a main part of it, such as spaghetti bolognese. 3  Informally, any type of pasta. 4  Electrical insulating tubing. 5  Anything tangled or confusing.