one of irish/italian ancestry.
can also be applied to one of purely italian heritage (see i-tie), though it is meant to be something of a mockery in this context, and doesn't really make as much sense phonetically.
"i'm an i-ti."
"oh, so youre italian"
"no no, irish/italian.get your shit straight."
Drowsy or sleepy effect linked to digesting large meals, usually high in fat or salt content.
Note: The digestive system uses roughly 60% of your energy while you idle about daily, so after eating large meals the digestive system takes energy from other areas of the body, allowing it to work faster, and bringing about a sleepy effect.
I don't want to eat too much because I will get the 'itis.