Certain types of clothes, such as cycling shorts, some ordinary shorts such as Bermuda shorts, also, jogging pants and kilts, are designed to be worn or are traditionally worn without underwear. This also applies for most clothes worn as swimwear, sportswear or nightwear.
The origins of the phrase "go commando" are uncertain, with some speculating that it may refer to being "out in the open" or "ready for action".
Slate magazine's Daniel Engber dates the modern usage to United States college campuses circa 1974, where it was perhaps associated with soldiers in the Vietnam War, who were reputed to go without underwear to "increase ventilation and reduce moisture". However, more recently, Graeme Donald has pointed out that the US Forces are "Rangers" rather than "Commandos", and that in any case, the phrase was in use in the UK, referring mainly to women, from the late 1960s. The connection to the UK and women has been suggested to link to a World War II euphemism for prostitutes working in London's West End, who were termed "Piccadilly Commandos".
The term appeared in the 1982 novel Groundrush by Greg Barron, in the sentence, "Bigfoot's jock snapped underneath, leaving him to 'go commando'." In the Chicago Tribune of January 22, 1985, Jim Spencer wrote, "Furthermore, coloured briefs are 'sleazy' and going without underwear ('going commando', as they say on campus) is simply gross." The term gained currency in the popular vernacular after appearing in a 1996 episode of Friends.
- Donald, Graeme (2008), Sticklers, Sideburns and Bikinis: The military origins of everyday words and phrases, Osprey Publishing, p. 94, ISBN 9781846033001, retrieved October 19, 2012
- "Uniform", Gordon highlanders 1914–18,
He told her the battalion never wore them. She didn’t believe him, so before he returned she made him a pair – but on his first spell in the trenches they were done away with, and his mother's work had gone for nothing.
- "The Real Story", The Real Story: What does a Scotsman wear under his kilt?,
However, there is nothing mysterious about what was worn below the clansmen's shirts. "You cannae tak the breeks aff a Hielanman!", runs an old saying, signifying the futility of attempting the impossible!
- Brennan, John; Taboada, Alvaro. How to Survive the Chilean Jungle (2nd ed.). Santiago, CL: Dolmen Ediciones.
- Gisesa, Nyambega (16 April 2012). "When a little goes a long way to ruin your reputation". Zuqka. Nairobi: Nation Media Group. Archived from the original on 23 July 2013. Retrieved 17 September 2013.
It's during the Vietnamese war, that the earliest cases of going without underwear were recorded. It meant ... being "out in the open" or "ready for action".
- Engber, Daniel (January 10, 2005). "Do Commandos Go Commando?". Slate. Retrieved 2006-12-23.
- Gardiner, Juliet (2005). Wartime: Britain 1939-1945. Headline Review. ISBN 0755310284.
- Wagner, Paul. "Rest and Relaxation, WW II Style". 398th Bomb Group Memorial Association. Retrieved 2014-12-23.
- Barron, Greg Groundrush p. 29 (1982) (1982 novel uses the term - "Bigfoot's jock snapped underneath, leaving him to 'go commando.")
- Heller, Jason; Koski, Genevieve; Murray, Noel; O'Neal, Sean; Pierce, Leonard; Tobias, Scott; VanDerWerff, Todd; Zulkey, Claire (June 21, 2010). "TV in a bottle: 19 great TV episodes largely confined to one location". The A.V. Club. Retrieved June 21, 2010.
[T]he episode also introduced the term 'going commando' into the popular vernacular.
- Hendrickson, Eric (27 October 1996). "Buzz word 'going commando' gets an airing on 'Friends'", Sunday Times-Sentinel (Gallipolis-Pomeroy, Ohio) (copy from The Detroit News)