sword cane
noun
: a cane in which a sword blade is concealed
Example Sentences
Recent Examples on the Web There were a lot of ex-colonials like Allen in the Service, infuriatingly dense regarding aspects of intelligence work that did not involve torpedo boats or sword canes. 
Andrew Liptak, The Verge, 17 June 2018 In one case, a sword cane was found in a traveler’s items at George Bush Intercontinental Airport in Houston. Dana Hedgpeth, Washington Post, 30 Jan. 2018
Andrew Liptak, The Verge, 17 June 2018 In one case, a sword cane was found in a traveler’s items at George Bush Intercontinental Airport in Houston. Dana Hedgpeth, Washington Post, 30 Jan. 2018 Word History
First Known Use
1823, in the meaning defined above