"hold on to your hats everyone, i have to bust ass  "damn, it sounds like a grizzly bear growling in here
to rip an unprecdentedly large fart, one that sounds like a large plane has just flown overhead  also see busting ass  past tense: busted ass
""hold on to your hats everyone, i have to bust ass  "damn, it sounds like a grizzly bear growling in here" What is the definition of "bust ass"?