I think it means you think you are so great
To sleep on it means to take some time and think things over. Usually said before a decision needs to be made. And yes, it is literal. The person who says this is asking for an answer the following day.
I think it means that that person agrees with that others persons idiom and that it fit that question that the teacher or whoever asked that question.
"Your head is going to explode" IS an idiom. It means you have too much to think about.
If you think about this for a minute, you can figure it out. An idiom is a phrase that doesn't make sense when you think about it literally. Can someone actually stand beside themselves? That makes this an idiom.
It's not an idiom. It means exactly what it looks like.
To slug means to hit, so it means hitting you until you can't think straight.
I think you mean "no great snakes," and it means "no big deal."
I think you mean "no great snakes," and it means "no big deal."
I think you mean PULL A BONER -- it means to make an embarrassing mistake.
The idiom "apple shiner" means the teacher's pet.
An idiom that means surrender is to "wave the white flag." A closely related idiom is to "throw in the towel" which means to give up."