"Mahoosive" is a colloquial term that means extremely large or massive. Although it's not an official word, it has gained popularity in informal communication and slang. There are many synonyms for "mahoosive" that could be used to describe similar things, including "gargantuan," "colossal," "enormous," "monumental," "mammoth," "titanic," "humongous," "jumbo," and "giant." These words not only have a similar meaning but also convey a sense of grandeur and magnitude. Depending on the context, any of these synonyms could be used to express the same idea as "mahoosive," and convey a sense of awe-inspiring size or scale.