My friends are off on their vacation in Turkey at the moment. What does, "to be off on your vacation" mean?

During the dog days of summer, it’s too hot to work outdoors. What does, "the dog days of summer" mean?

On my first day in this job, I was asked to give a report to the board of directors. I was really thrown in at the deep end! What does, "thrown in at the deep end" mean?

Tom constantly criticizes Larry, but he ignores it and the criticism is like water off a duck’s back. What does, "like water off a duck's back" mean?

I went to an school party last night, and I really felt like a fish out of water. I have nothing in common with those people. What does, "like a fish out of water" mean?

I really learned how to travel on a shoestring when I studied abroad. What does, "travel on a shoestring" mean?

Come rain or shine, we will have our wedding this weekend. What does, "rain or shine" mean?

My younger brother has really taken a shine to you- he wants to see you all the time. What does, "to take a shine to someone" mean?

Thirty thousand dollars is a drop in the ocean when you think about the millions that will be spent on this film. What does, "a drop in the ocean" mean?

I have a few more days before I have to leave for home, so I may as well make hay while the sun shines and go sightseeing as much as possible. What does, "to make hay while the sun shines" mean?