Fire in (one's)/the belly phrase
It can also be phrased as "fire in the belly".
A very strong sense of enthusiasm and determination.
He always plays with fire in the belly, and I believe that is the root of his resounding success.
She seems to lack the fire in her belly when she half-heartedly taught kids by using materials taken from others.
The player is on the comeback trail with fire in his belly after a serious knee injury.
Work with fire in your belly, then success will chase you.
To despise or make determined attempts less strong
To start working on something seriously or determinedly; to start doing what needs to be done
If you hit the ground running, you start to work immediately with a lot of energy.
It was first recorrded in print in 1882, as part of a comparison article by Robert Louis Stevenson between historians Thomas Carlyle and Thomas Babington Macaulay. The origin of the phrase is unknown. Stoking a potbellied stove or the fiery feeling of heartfelt heartburn may have inspired this metaphor for ambition.
To do something in an unusual way
I guess I like to run against the grain in everything I do.