(n.) 2,000 Pounds (lbs.) of fecal matter (Poop, aka dung, aka manuer, aka crap, aka shit, aka poopoo, aka should i keep going?, aka #2, aka you get the point, aka stool, aka seriously im done, aka droppings)
Pronounced shit-un. Its a combination of the words shit and ton. Usually used in texting as a time saver (only missing one space so its not much of one). Also used in vocal conversation when trying to emphasize.
Example: Luke: Wanna come over and hang out today? Owen: I can't, I've got a shitton of homework.
Luke: Bummer.
Owen: Yup.