Indefinite insult, often used in horrible rap battles on YouTube and Ebaum's to describe someone who is cartoonish, or has cartoon-like qualities. It is unknown whether or not it will offend the person it is said to.
You have a bull on your shirt... you look like a firt... from a cartoon. A coon, and it ruins like prunes... you live with racoons! Animal boom? You live in Kalamazoo.. you foo!
when one has to fart but can not due to their surroundings. So one sucks it back into their stomach.
The rumbling in your stomach is not because your hungry,you're firtin.