Basic Definition:
The phrase "hot water" can mean two things: 1. Literally, it refers to water that is heated and uncomfortable to touch. 2. Figuratively, it means being in a difficult or troublesome situation.
When using "hot water" in the figurative sense, it is usually used to describe a situation where someone is in trouble or facing problems, often because of something they said or did.
In more advanced contexts, "hot water" can refer to situations involving legal or social trouble. It's often used in discussions about consequences of actions.
In hot water: This idiom means to be in trouble or in a difficult situation.
Get into hot water: This phrasal verb means to find oneself in trouble.
"Hot water" is a versatile phrase in English. It can refer to heated water in a literal sense, or more commonly, to being in trouble in a figurative sense.