Sick

Context #1:

Tom: Have you seen the new Star Wars movie yet?
Jim: Yeah, I saw it last night. It was so sick!
Tom: I know! I think it is the best one yet.

Context #2:

Sara: On Saturday we went to the street skateboarding championships, and it was so cool!
Kim: I bet! I can't believe so of the tricks that they can do now.
Sara: I know! We saw some really sick tricks.

Meaning: "sick" is an idiom/slang word that is used to describe something that is really cool.

http://languagesystems.edu/ 

 

Cream of the crop

Context #1:

Joe: Have you decided who you're going to hire for the open position in the accounting department?

Sam: Well, I interviewed about 8 people and now I'm down to the cream of the crop. There are 2 people I am still considering, and need to make my final decision by Friday.

Context #2:

Christa: Do you know what you're going to cook for Valentine's Day dinner this year? 

Sally: Well, I had about 5 different recipes I was thinking about, and I've narrowed it down to just 2 of my recipes that are really the cream of the crop.

Meaning: "cream of the crop" is an expression that means "the best of the best."  It is used to describe the very best things out of a group of things that are all pretty good.

http://languagesystems.edu/