To my surprise, many of my friends have no clue what the itis is. I, on the other hand, have grown up with the term being thrown around after every large holiday meal.The very idea of the itis is largely a product of Black humor, but it is certainly starting to integrate across cultures. Anyways, as we are now in the days after Thanksgiving and the full wrath of the holiday season is amongst us, this is a perfect moment to explain what people mean when they say the itis. Nobody can escape it, which means you all felt it on turkey day, and the day after, and the day afer that...and if you had an opportunity to get your hand on a massive amount of leftovers, you're feeling it now too!

Here's the top definition on urban dictionary: The general feeling of lethargy and well-being experienced after eating a satisfying meal. This phenomena is particularly triggered by foods high in carbohydrates and meats containing the amino acid tryptophan.

Basically, it's a process. Here's some evidence from an awesome show,The Boondocks, that demonstrates exactly what I'm talking about.

Step 1:

Step 2:

Glad I could help..now I'm going to reenter my food coma, just like Grandad Freeman. Guys, stay strong as the holiday season approaches!