scatter band
n.— «Eschewing the more traditional, rigid marching-band image of peers such as Cal and USC, Stanford’s rowdies call themselves a “scatter band.” Also found at most Ivy League schools and others such as Rice and Virginia, scatter bands “can the charade of military lock step and run onto the field in a screaming frenzy.”» —“The big game: Band of misfits” by Patrick Fitzgerald Sacramento Bee (California) Nov. 19, 2005. (source: Double-Tongued Dictionary)