A fork of Rural Dictionary
The act of ejaculating so hard that you squirt out projectiles via the scroyum.
Her: Hey what's all this white stuff?
Him: Sorry I was rumping to hard
It is the action of moving to right and moving slightly up. If gravity still exists while moving up, a nuclear bomb will explode killing everyone nearby.
America decided to use several Bub Rumps on Japan to end WW2