"Make one hot under the collar" is a common idiom that refers to an individual getting angry or upset due to something that has been said or done. However, there are various synonyms for this phrase that can be used in order to convey the same meaning. Some of these phrases include "make someone angry," "irritate someone," "annoy someone," "get someone's goat," and "ruffle someone's feathers." All of these phrases signify causing someone to become agitated or annoyed. It is important to choose the appropriate synonym based on the context of the sentence and the emotion that is being expressed.