Home › Words › T › tiswastiswastiswas means A state of nervous excitement or confusion.EtymologyPossibly coined by the Royal Air Force. Possibly a blend of it + is + was. Compare tizzy.nounA state of nervous excitement or confusion.e.g.“It was her first ever visit to the capital and she was all of a tiswas.” — 2002, James Riordan, War Song, page 88:Definitions & examples from Wiktionary (CC BY-SA 3.0).