Christ Bearer -- I'm a Stand Up Comedian Now ... Obviously, I Do Penis Jokes

Christ Bearer -- the rapper who chopped off his own penis -- is ready to laugh about the night he got all slice and dicey ... by getting on stage and telling jokes about his shredded man meat.

The former Wu-Tang affiliated MC hit up the Ha Ha Cafe Comedy Club in North Hollywood last week, and we're told it was only his second time getting on stage ... after a few months of studying stand up at various clubs.

Christ Bearer says he loves doing it, and telling jokes makes him feel better about ... y'know.