Somebody describes his
misunderstanding of what someone was saying by stating, "I misconscrewed it up."
Someone explains his inability to talk while being upset by saying he was "flustrated."
A meaningful malamanteau is "ambiviolent," as in: "Beatrix Kiddo in Kill Bill was ambiviolent. She didn't know who to kill first."
George W. Bush's inadvertent malamanteau "misunderestimated" has entered common usage.
Someone describes being misinformed as "being miscommunicado", a mixture of miscommunicate and
incommunicado.
The discussion in the
wikipedia page for 'Malamanteau' is a "Wikibroidery" (Wikibroglio)