His broadcasting sign-off consisted of a nonsense word, "thermostrockimortimer," the meaning of which (if any) was never made public. Cactus stated that, "The phrase is in the Bible; if you don't find it, keep reading."
Cactus's broadcast closing featured a nonsensical word, "thermostrockimortimer," whose meaning, if any, remained unclear. He claimed the phrase was from the Bible, urging listeners to continue reading.