1. Someone with no sense of humour
and finds all jokes
rubbish, and makes a point of saying so as well.
2. Someone who is always upset
and thinks the world is on his or her shoulders and no amount of jokes or light hearted banter
snaps them out of it.
3. Doom and gloom nay-sayer or negative nancy
that sees the bad in everything and everyone and has no problem pointing it out to everyone either.
4. All of the above rolled into one giant meat bag of repulsive miserable cuntness.