The term "rucks up" is an informal phrase used to describe a situation where something goes wrong or becomes problematic. There are several other synonyms for this term that can be used to express the same idea, such as "messes up," "screws up," "botches," "flubs," or "fouls up." Each of these phrases describes a situation where an intended action or outcome was not achieved due to unexpected circumstances or a lack of proper execution. It is important to have a varied vocabulary to communicate effectively in any situation, and being able to use different synonyms for "rucks up" is a great way to achieve this.