I admid I did not knew what the word bump means, it isn't used in my editing/tv world.
So I looked it up, because you are never to old to learn something new.
"Bump (application), a popular app for the iPhone and Android smartphones which allows users to easily share information over the internet."
Next to this meaning it can mean a collision or impact, a bump (road), where two routes both turn in opposite directions at an intersection, a bump function, a mathematical function which has a non-empty bounded support.
And the word is used in bump mapping, a computer graphics technique or like bumping (chemistry), the irregular boiling of a liquid.