"shan\'t." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/shan-t>.
shan\'t. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/shan-t
Dated and very rarely used in North America, where it may not be understood. Like shall, it may also be considered formal or pompous, or used in a parody of British English speakers.
Abbreviation of shalln't