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When ones mental capacity is so small, that they have to use Thesaurus.com to come up with synonyms for words to make them sound more sophisticated. This usually happens when writing essays or papers.
Mrs. Teacher: Johny, you always get straight D's but this essay that you wrote last night was brilliant

Johny: Yeah, thats because I thesaurafied it.
by koomi2 October 04, 2011