Basketball means "three non-stick". Basketball, the basketball player throws the ball does not touch the board, does not touch the basket, does not touch the net situation is called "three non-stick". The opposite is the hollow ball, which is nothing but net, meaning that the ball falls through the basket without touching the basket or the rim. Regular basketball players will often make fun of someone who throws a three non-stick for "outside the basket hollow" (outside the empty), that is, nothing touched.