The act of wearing pants without underwear, allowing your balls to hang freely

Referring to the heavy unfashionable winter jacket and patterned mittens Sanders wore to the inauguration of Joe Biden.

When a guy doesn't wear anything underneath his pants/trousers/shorts and he is letting himself hang loose.

Going without undershorts, said of a male, so called because his balls hang free and unencumbered. A similar expression is "going commando," which can be used of either a male or female without underwear, but is more often used of a male.

walkin' around, usually in shorts, without underwear on. often sung along with, and popularized by, the tom petty song 'free falling'

not wearing underwear usually used for males.

the act of not wearing underpants (guy specific) which lets the men roam free