"Hotted it up" is an expression used to describe the act of enhancing or improving something. There are a variety of different synonyms that can be used to convey this same meaning, including "ramped up," "amped up," "raised the bar," "amped it up," "spiced up," "upgraded," "boosted," "elevated," and "revved up." Each of these phrases could be used in place of "hotted it up" to describe a situation where something has been taken to the next level and improved upon. Whether you are looking to describe a cooking recipe, a fashion trend, or a business strategy, there are plenty of synonyms available to help you convey the right message.