1. To misunderstand a concept to such an unbelievably inept degree that it can only be explained by an unfathomable level of stupidity or an unprecedented level of wilful ignorance.
2. To misunderstand a concept so completely, or pretend to in such an egregious manner, that it is pitiful and/or hilarious for anyone listening to you talk about it, (except those who have the same misslunderstanding).
Named after Chuck Missler for his attempt to disprove the Theory of Evolution with a jar of peanut butter.
2. Kent Hovind would not be in jail right now if he did not misslunderstand US tax law. When he was in court, he professed such a blatant misslunderstanding of the charges against him that the judge was forced to question his ability to comprehend the English language.