meaning and origin of the phrase 'to go commando

USA, 1974—to wear no underpants—originated in university slang—perhaps because commandos wear no underpants in order to prevent crotch rot and rashes

Is It Okay To Go Commando In Tights? - Brit + Co

Going Commando: What You Should Know Before You Do

The Pros & Cons of Going Commando

Stars Who Are Open About Not Wearing Underwear, Panties

your mother wears army boots': meaning, origin (?), and early occurrences

The Pros & Cons of Going Commando

Is It Okay To Go Commando In Tights? - Brit + Co

More People Go Commando Than You Might Think, According To A New

Sleep Wearing Underwear Or Go Commando? Doctors Weigh In

Going Commando - TV Tropes