If you've ever done a jackknife dive into a pool to see how high your splash could go, you'll know the general idea of the "cold backfire"... I call this little diddy the ploop poop and it is much feared. Unpleasant and disgusting though it is, young and old I've found can relate; plus, what good is the internet if not to indulge in our lowest brow for no one's benefit but our own?