A twinkie has effectively no nutritional value and as a person, a twinkie is a person so dumb that their thoughts are of no value. So a pstchotwinkie is a twinkie who is insane.
I used to think that one had to be intelligent to be truly insane but I met this psychotwinkie who completely changed my mind about that. Since then I've met quite a few.
by Fundamentalist_Pastafarian January 04, 2010