Found the Answer! 

I'm back and after looking for a moment I found the answer of the title with source. The actual answer is: Bleach can mean both Ichigo's bleached hair as well as the shinigami's job of "bleaching" the sins of the Hollows and sending them to Soul Society. And there U Go! http://forums.animesuki.com/archive/index.php/t-27211.html (That's My Source)