I seem to remember it coming out on one of the interminable Kumites just before it went to shit, in the context of "This girl says she was molested? So what! I was too!" and just stunning everyone else into silence when a few followup details were provided. I might be mashing a whole bunch of exposition together and I'm sure not tracking down wherever old Kumites go to die.The only reason I question the validity of the claim is that Andy I believe started talking about his sexual assault during the height of the MeToo movement and the audience started to fill in the details themselves. I can see Andy doing a dumb joke about being “MeToo’d” and sticking with it. Andy lying to gain sympathy/money/viewers is not a new thing for him at all.
There are plenty of things outrageous claims to call Andy on; him being touched/abused as a child doesn't seem like one. The exact details of what happened are probably in question - I don't buy the frying pan beating as presented