What does nobody's ('s)mean?

What does "cabinet" mean?

A "cabinet" is in most commonwealth countries. It's the committee of senior ministers responsible for the government policy. They make decisions and control the government policies. Ex: There's a cabinet meeting to discuss the issue this week. Ex: The cabinet decided against reducing quarantine restrictions for now.

Do people use "Bazinga" these days?

No, "bazinga" is not a commonly used phrase in English. It is mostly a phrase used by the character Sheldon in this show, but outside of the show, it is not a popular phrase used by English speakers.

What's "in case" mean and when's it used?

"In case" means "in the possible circumstances that." It's used when there's a possibility of something happening or being true, then you have something to provide against it. Ex: In case you don't believe me, I have proof. = In the possible circumstance that you don't believe me, I have proof. Ex: There's a blanket in the back of the car in case you get cold.

Are "all right" and "alright" the same? Which one is more common?

Great question. You may be surprised to learn that "alright" is simply and incorrect spelling of is "all right" and is not considered to be gramatically correct. Although you might see "alright" in some informal writing, formally it is always considered as incorrect. To use the expression without worrying about being incorrect, it is best to spell it as two words: "all right". The reason why "alright" is still not acceptable is that, first no dictionary accepts it as the correct spelling. The second reason is that in some contexts, "alright" will not work, and in all contexts, "all right" will. Both words mean “OK,” “acceptable,” “well,” or “satisfactory,” but "all right" can have other meanings too. Ex: My exam answers were alright. This conveys the sense that generally, my test answers were “just acceptable.” Ex: My exam answers were all right. The most likely meaning of this sentence is that all of my answers are correct, but it could also mean that I answered the questions adequately. If you use "alright" informally in letters or texts to friends, people will certainly know what it means. But when your writing is being published, in a formal situation or evaluated, use "all right".

Is "~ is a real thing" a common expression? What does it mean?

"(Something) is a real thing" is not a very common expression, but is an expression some native English speakers use. This expression means "this thing exists (in my opinion), even if some people are doubtful that it exists". Ex: Heartbreak is a real thing, it is okay to feel sad after a breakup. Ex: Aliens are a real thing, I saw one myself.