Definitions by FLA

over the top 

"Over the top" refers to having a certain quality in excess of reason, so that it becomes abrasive.

It is good to project an image of confidence, but an excess of apparent confidence that is essentially boasting can be considered "over the top". It is good to be assertive, but if one is assertive to the point of being nasty, this would be considered "over the top".

over the top by FLA June 14, 2005