Talk:Entrepreneur Louise/@comment-17760674-20140928200944/@comment-23944398-20140929013633

lol a quick google gives me this "

Do you, as in "I'm gonna do you in" is what a thug would say before he perpetrated violent acts against you. It could also be used by a police man, for example "Do him for possession", so do him is slang for arrest him.

There is also, the more pertinent definition of do you, which is what a swindler would think when tying to think how to trick you: "What can I do you for?" Where what they mean is "What can I get out of you with my tricks?"

Whereas "What can I do for you?" is someone simply asking how they can help. In the context of a barman, it would be asking what drink or other pub service they can provide."