what does the phrase "that is not my game" mean? Here is the case I met before. Efficiency is not my game. No doubt "something is not my game" has a lot of meanings and it depends on the situation. I guess maybe the meaning is I don't want to do that things , I can't do it well ,I'm not good at it,It's none of my business or something else. Hope for detail and examples to help me figure out this phrase. Many thanks.

what does the phrase"stir my stomach up"mean? The sentence is -----Just that comment alone,really just stirred my stomach up.I don't want anybody to use the word "shady" when they think about us.---- How to understand "stir my stomach up"? does it mean something gross? I got nothing from Google. Following with some examples will be great. Thanks in advance.

What does the phrase "word can't do it justice" mean? What does the phrase "word can't do it justice" mean? Does it has the same meaning to the phrase "One picture is worth a thousand words"? Many thanks.

what does the phrase "get butt kicked" mean? Here's the sentence ,I'm getting my butt kicked in there,this is tough. get sb's butt kicked. How to understand it? Thanks.

how to understand the sentence "this is where it gets to the nit and grit of the business"? how to understand the sentence "this is where it gets to the nit and grit of the business"? 'the nit and grit 'means what? I can't find any infromation through the internet.HELP! Thanks .

what does the phrase "Been there,done that" mean? Hope for some details and examples. Many thanks.

What does the difference between "you got me " and "you got me good"? I saw a reality show named "undercover Boss". In this show I met these two phrase many times,but just can't got it. What does the difference between "you got me good" and "you got me good"? or the meaning is the same,means "you lied to me","you cheated me". I want to figure it out.Thanks in advance.