Playing with fire is a phrase commonly used to describe risky behavior or engaging in actions that could lead to dangerous consequences. There are a number of synonyms for this phrase, including dicing with death, flirting with disaster, tempting fate, walking on thin ice, and taking a gamble. These expressions all convey a sense of danger and irresponsibility, suggesting that the person engaging in these activities is placing themselves in harm's way without regard for the potential consequences. Whether it involves risky behavior or making unwise choices, playing with fire is never a good idea and should always be avoided where possible.