जल water, बिन्दु means 'drops' निपात means to fall.
Seeing abundent wealth of parents, if their child's thinking that even if he/she would spend any amount his/her parent's riches will not get exhausted, starts spending money without adding to it even a little, his abundant wealth gets exhausted at sometime or the other. In the same way, if the man starts making use of unlimited treasure of minerals, gifted to the human race by nature, in an unrestricted manner, it will also get exhausted. The Nyaya under discussion advises us to think of the reality and conveys that as the pot filled to its brim with water also becomes empty if water flows out from a hole in it even in drops. So we must always add to the mass of things we use or should manage to see that the store of things does not get ruined - (water is not spoiled).
This Nyaya can be referred to in a speech to describe the behaviour of a person spending seeing a big store of things, articles.