go overboard

idiom

Definition of go overboard

informal
: to do something in a way that is excessive or extreme : to do too much of something She went overboard with the decorations.

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“Go overboard.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/go%20overboard. Accessed 6 December 2019.

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