Codebreakers and psychologists needed here: apply to Marvin at the Blog of Jerome

I sent Jerome a round robin email asking people to forward their favourite recipes. He sent me this reply.

Seldom does anyone drop out my arse.
Now if it was a cocktail list then I would be interested.
I cooked an amazing Cottage Pie on Monday night so am happy. No you guys can not have the recipe, a genius does not share his secrets.

I am a bit bemused by the first sentence. Has Jerome given birth in the past? If anyone has understanding of the mind of Jerome - and it has been suggested that only a world-class psychologist would be able to hack it, could you please comment and tell me what he's on about.