The phrase "in the doghouse" is commonly used to describe a situation where someone is in trouble or has fallen out of favor with another person. It is often used in relationships, where one partner is upset with the other for something they have done. Synonyms for this phrase include "on the outs," "in trouble," "unpopular," "in disgrace," and "out of favor." Other related phrases include "in hot water," "on thin ice," and "walking on eggshells." When someone is in the doghouse, it is best to try to make amends and apologize for any wrongdoing in order to repair the relationship.