Block hole, also styled as "blockhole" and "block-hole", is a cricket term referring to the part of the crease where the batter’s bat touches the ground, as well as where yorkers bounce. It may also mean the mark on a cricket pitch around the area where the batter stands, caused by tapping the bat on the ground.

What does it mean when something is a black hole?

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Is black hole a proper noun?

A gravitationally domineering celestial body with an event horizon from which even light cannot escape; the most dense material in the universe, condensed into a singularity, usually formed by a collapsing massive star.