just plain wrong: wrong without question, incorrect, not in line with the facts, does not match with reality, mistaken, strongly disliked.
1. Trying to correct a mistaken belief: "The idea that the moon is made of cheese is just plain wrong."

2. Correcting a social ill or faux paus: "Discrimination based on race is just plain wrong."

3. Stating a strong dislike for something subjectively: "That song is just plain wrong." or "That piece of art is just plain wrong."
by dogface82 December 7, 2013
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Wrong to the point where it is not even fuuny or interesting, simply ubelieveably wrong.
When Johnny hung himself, it was just plain fucking wrong
by Crazedman December 28, 2009
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