"Die in a pile of brass" is a phrase often used in military and firearms circles. It typically conveys a sense of fighting until the very end, often in a last-stand scenario, with the "brass" referring to spent bullet casings. The imagery it evokes is one of relentless defense and determination, where the person continues to fire their weapon until all ammunition is expended, ultimately leading to their demise surrounded by empty shell casings. This phrase can symbolize courage, resilience, and a warrior's spirit.