over the top. "some performances go over the top"

over the top
adverb
1.
informal
to an excessive or exaggerated degree.
"some performances go over the top"

2.
historical
over the parapet of a trench and into battle.
"I'll be in the trench with you chaps when you go over the top"

adjective
informal
excessive or exaggerated.
"failed, over-the-top attempts at humour"

Similar:
excessive

immoderate