I actually live in Seattle and hold season tickets to the MSL team here (Seattle Sounders FC). One of the fan groups does a chant that sounds really cool called "Take 'em All." You can listen to it at: http://www.weareecs.com/media/songs/
I like the sound of it from a distance; it has potential but the actual words to the chant are actually not that great:
"Take ‘em all,
Take ‘em all,
Put ‘em up against a wall and shoot ‘em,
Short n tall, watch ‘em fall,
Come on boys, take ‘em all"
I think that third line is something more fitting for the Horseshoe than the Big House. UM folks would probably need to refine this before putting it to use.