fighting chance 

A word meaning that you still have a chance to succeed if effort is made

They still have a fighting chance of winning

fighting chance by allan_t321 June 6, 2016

fighting cancer

Masturbating.
From the idea that frequent fapping lessens the risk of prostate cancer in males.

"I was gonna go out last night, but decided to stay at home and fight cancer instead"

"Every time you fight cancer God kills a kitten. What's worse? Cancer or a dead kitten?"

fighting cancer by Kaleidoscope July 14, 2005