'trinomial whipsnake' sounds like randomwords that they included to beat the Baeyesian spam filters. I've gotten some amazing Haikus from spam subjects:
fishy klux finite orthicon connivance cenozoic dearth
pier algorithm ontario
--John S. Thu May 20 13:51:38 2004
drat, the line breaks didn't come through
--John S. Thu May 20 13:52:02 2004
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