When someone retracts their belly and releases all the energy at light speeds to generate a detrimentalshockwave which destroys all in it's path with it's air pressure
Top 10 Belly Busters that shocked the World. Number 1, Jimmy Nuetron belly busting a Tsunami and saving his hometown from complete and utter destruction, chaos, havoc and last but not least, the shortage of good memes
You miss one class or lecture because you don't feel like it or it's at an inconvenient time for you. Then you start skipping all the classes related to that subject and eventually you're bunking important lessons.
It's the so called bunking train because you hop on the train at the station and it starts to pick up speed. No one ever tells you that it's headed to Failure City.