An example of the appeal to definition
"We should ignore the theory of evolution because the dictionary says that a theory is just an opinion that you have about something you can't prove."
The person using this fallacy is basing their statement on a specific definition of the word "theory" while ignoring alternative definitions that will better capture the meaning of the term as it's used in a scientific context.
A negative mind will never give you a positive mind.
FROM THE ARTICLE
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Circumlocution: When People Use Too Many Words - Effectiviology