be over the top

To be or be seen as excessive. A massive birthday party with princesses and pony rides is a little over the top for a one-year-old, don't you think? She hardly knew my grandfather, so her bawling at the funeral was definitely over the top. That movie was intentionally over the top, and I think it worked—especially when that guy fought the bear.

be/go ˌover the ˈtop

(abbr. OTT) (informal, especially British English) (of a person) do something in a wild, excited or extreme way; (of something) be unnecessarily extreme: They went completely over the top at their wedding. I’ve never seen anything like it! ♢ His remarks were a bit over the top.