HUMOUR

HUMOUR , the meaning of this word is always taken in the other way. It is not necessary that anything humorous should cause stomach aching laughter,it is something that makes our inner self and mind laugh. People of all ages and cultures respond to humour. An overwhelming majority of people are able to be amused, to laugh or smile at something funny, and thus they are considered to have a "sense of humour."
Sometimes we are not able to absorb one's humour and term that piece of humour a 'PJ'. I think there is nothing such as a PJ (Poor Joke). Humour's defination can't be just equated to the word 'JOKE'. Joke is just a kind of humour. 'WIT' is an another kind of humour.Wikipedia defines WIT as"a form of intellectual humour". A joke can be non-sense but a wit can not else it will not be called a wit.

So there is nothing such as PJ , there is some lack of sense of humour in ourselves if are not able to get the taste of one's joke.