(informal)used, often humorously, to assert that whoever finds something by chance is entitled to keep it(非正式，常幽默)誰(shuí)發(fā)現(xiàn)歸誰(shuí)；誰(shuí)丟失，誰(shuí)活該
柯林斯高階英漢雙解學(xué)習(xí)詞典釋義
N-COUNT
發(fā)現(xiàn)者;尋得者;找到…的人
You can refer to someone who finds something as the finder of that thing.