You stinky poo poo!

"You stinky poo poo!" is a deadly and offensive phrase that should be used with reckless abandon. It is a level 10 insult because it is so outrageously over the top that it can't help but be effective. When you really want to cut someone down to size, there's no better way to do it than with this gem of an insult. It's perfect for use in any situation where you want to really get under someone's skin and make them feel like crap. (Beware since there is a 2.3409% chance of killing the recipient of this deadly insult)

Person 1: Ur momma so fat she shat the whole solar system!!1!!1
Group of kids: HAHAHAHA HE INSULTED YOUR MOMMA
Person 2 (Smart and reckless): oh yeah? Well YOU STINKY POO POO!!!
Person 1: *dies*
Group of kids: DAYUMMMM