Ultimate Aggie Share definition Flag The status achieved when a student at Utah State University sits on the bronze "Meet The Challenge" bull naked. Guy: My girlfriend sat on the bronze bull naked!Other guy: Dude! She's an Ultimate Aggie! Ultimate Aggie by kut17 October 21, 2010 0 0 Get merch Get the Ultimate Aggie mug. Buy Now — $32.95 See more merch