Definition: The word "nauseating" is an adjective that describes something that makes you feel sick or causes a feeling of nausea, which is the uncomfortable sensation that you might vomit.
In more advanced contexts, "nauseating" can also be used metaphorically to describe something that is morally or emotionally disturbing. For example, you might say, "The politician's lies were nauseating to listen to."
While "nauseating" primarily refers to physical sickness, it can also describe things that are morally repulsive or disturbing to someone.
There are no specific idioms or phrasal verbs that directly use "nauseating," but you might come across expressions like "turn my stomach," which means something makes you feel sick, similar to "nauseating."
In summary, "nauseating" is a word used to describe things that make people feel sick, whether physically or emotionally.