Lolocaust Denier 

The single person in a group who rejects a joke as unfunny, while all others regard it as devastatingly funny and potentially capable of causing 6 million people to die of laughter.
Often someone who is generally considered to have a poor or weak sense of humour.

Phil: Dave didn't laugh once during that Flight of the Conchords show
Harry: I know man, what a lolocaust denier

Lolocaust Denier by lbr11 May 20, 2011

lolocaust denier 

A person who denies the hilarity of a given joke; one who bums the joy.

Larry was such a lolocaust denier. He didn't even crack a smile at that joke!

lolocaust denier by Machu505 August 11, 2009

holocaust deniers 

1. anti-semites who proclaim that the mass murder of jews never happened durinv World War II.

2. people of Japan who proclaim that the mass murder of Chinese, Korean, south-east asians (including Indians), Dutch, British never happened during World War II.

John: Can an entire nation be labelled as holocaust deniers?

Mike: No, unless you are taking about Japan. The entire Japanese race are holocaust deniers.

holocaust deniers by James Quirk April 27, 2008

Holocaust deniers 

people who KNOW that the Holocaust happened but just like to say that it didn't all because they're just anti-semitics assholes

Ever noticed how Holocaust deniers usually also tend to be anti-zionists. It's no coincidence. Holocaust denial is a result of anti-semitism.

Holocaust deniers by rustyshackleford January 4, 2008