The term jazz is first noted in a 1912 issue of the LA times reffering to Ben Henderson’s pitch named “the Jazz” because “it wobbles and you simply can’t do anything with it”. Ben`s use of the word did not have much impact its` evolution but is the earliest appearance in print. In the same decade it was mainly used to mean “excitement, restlessness or energy” before changing to a colloquial word used to denote something as misleading, excessive or needless which is not uncommon in use today. Other versions of that meaning are expressed in sayings like “all that jazz” where it means “stuff like that” or to mean simply “stuff” in usages like “how was school today?, Oh same old jazz”. Jazz did not come to mean music until around 1915 in Chicago.
Reports of the use of jazz orally arise from before 1915 but none are officially documented. The first ‘Jass’ bands were on the bill in Chicago, spelt Jass, Jas, Jaz or Jazz, and it seems soon that use was spread around the country to San Francisco and California. The use of jazz as a verb is of rare usage meaning to mess something up, to ruin, to confuse while other uses in reference to music are much more common.
 Oxford English Dictionary, "jazz (n)." Last modified 2008. Accessed November 21, 2012. http://www.oed.com/view/Entry/100938?rskey=txG4tk&result=1
 Oxford English Dictionary, "jasm (n)." Last modified 2008. Accessed November 21, 2012. http://www.oed.com/view/Entry/272448?redirectedFrom=jasm
 Alan P. Merriam, and Fradley H. Garner, "JAZZ - THE WORD," Ethnomusicology, 12, no. 3 (1968): 373-396, http://www.jstor.org/sici?sici=0014-1836(196809)12:3<373:JW>2.0.CO;2-E (accessed November 21, 2012).