Hi Sara88,
Here is the meaning of the mentioned of you idiom "over the top"
over the top = far more than usual or expected
1. surpassing a goal or quote, as in
"The new salesmen are excellent; they were over the top with the first six months."
2. extreme, outrageous, as in:
This comedian's style goes over the top. (slang).
Regards.
V.



