do you mean 'used by someone'? It's a nuance, like if someone threw a bottle; 'I got hit by a bottle!' - it's more dramatic/regretful/surprising.. 'I was hit by a bottle' just seems like information. :)

To be used by refers to who should use it. Get used by is wrong. It should be "Get used to" which means to adapt or get accustomed to - This instrument is only to be used by a dentist. - She needs to get used to living here this is the only apartment we can afford right now. - They got used to her in a short period of time / They got used to her personality. - They got used to her at work so they no longer valued her. (took her for granted) As for getting used by, you may say - She was getting/being used by her boyfriend (meaning, he used her for his own advantage, not for her benefit/good). He might have cheated on her, took advantage that she came from a rich family etc...

Some of them want to use you Some of them want to get used by you Let me just say that this is one of the very few instances where people (or a singer) would say get used by you. Why? The artist is refering to two types of people 1) people who will use you People can use you for many things such as sex, business partner, use your set of expertise etc... 2) people who are looking to be used by you If you're in high ranked position in any organization such as a band, a sports club, a company. You're a vip, people will want to get used by you they will throw themselves at you for example for a autograph, to work for you, to have sex with you

What about Sweet Dreams by Marilyn Manson Some of them want to use you Some of them want to get used by you. this is a different kind of used = means abused by you, to abuse you. used here means to take advantage of you. Sweet Dreams are made of this. Some of them want to (take advantage of you) Some of them want to be (taken advantage of by you) some people will take advantage of you some people are the kind that like to be taken advantage of. But be careful song lyrics are subjective. You have selected the wrong answer for your specific context.

"To be used by" is like an object that will be in use by a person. For example, this computer is to be used by the professor. In other words we can simplify this as: the Professor will use the computer. I am not sure about 'get used by', but i think it's "get used to"? If this is the case, it would mean that someone is accustomed to something. For example, I got used to eating bread in the morning. This means that you are accustomed to having bread as your breakfast.