to waste effort on something that there is no chance of succeeding at.
He keeps trying to get it published but I think he is just trying to break a butterfly on the wheel
54đź‘Ť 61đź‘Ž
To use excessive force to accomplish something that can be done with far less.
Break a butterfly on a wheel: Sending a SWAT team to deal with a fifteen year old kid disturbing the peace by having his music turned up too loud.
The original phrase "Who breaks a butterfly upon a wheel?" was a line from the poem "Epistle to Dr Arbuthnot”, which referenced an ancient torture method known as the “breaking wheel” or “Catherine wheel”.