get/take the bit between one's teeth

idiom

: to start doing something in a very enthusiastic and determined way
He can be lazy about doing his work, but when he gets the bit between his teeth there's no stopping him.

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“Get/take the bit between one's teeth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/get%2Ftake%20the%20bit%20between%20one%27s%20teeth. Accessed 10 Mar. 2025.

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