A rape survivor was heckled at a comedy open mic show Wednesday night as she tried to explain why she thought rape was never funny.

What was intended as a discussion of comedy's most controversial material turned sour when RMIT student Genevieve Stewart, 20, was accused of censorship at Richmond comedy venue Station 59 as she described her attack at a country train station when she was a 15-year-old high-school student.

In an audio recording of the event, her speech is drowned out by audience members, including one yelling "where's the joke?"

Ms Stewart was invited to the venue by comedian Kieran Butler, best known for his Ben Cousins musical, after she took part in a successful Facebook campaign to shut down an all-male comedy debate, titled "There's Nothing Funny About Rape", at the same venue.