US Navy and Marine Corps reference to a dude, a man, a male of the human species. Often used plurally.
"I didn't get no ass on liberty. It was a sausage fest, nothin' but swingin' dicks!"
by Mister Priapus June 2, 2005
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Refers literally to a man, but specifically to someone whose skills or physical stature make him especially intimidating. A badass. Can be used metaphorically to refer to a woman, as long as she is a total badass at something.

There is a common misconception that this term refers to any male because it references the male organ, but the more important part of the term is "swingin'." That is, not just any man, but an especially potent or imposing man. Hence, a badass.
1) As in No Country for Old Men: "Call my room if anybody comes in--and by 'anybody' I mean any swingin' dick."

2) A: "Did you read that new Judith Butler article? She totally destabilizes the regime's reinscription of normative typologies."

B: "Yeah, she's a swingin' dick when it comes to critique. Also, stop talking like a d-bag."
by MosheMoshe May 6, 2011
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Military term used to describe any man able to walk. If you were walking your dick was swinging hence the correlation. Particularly remembered from the American/Vietnam conflict.
by Simon7 May 8, 2021
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A big time mover and shaker, one who feels their self-importance to society is so high that they use extra starch on their shirts as if they were on their way to a Dracula convention.
Look at that guy, he's a real swingin' dick. His shirt is so stiff it could walk by itself.
by g3 and mocheeks December 7, 2008
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The action of seriously owning an individual.

To totally destroy someone in a fight even though they brought their "friends" to help out.
To go about your business of kickin' ass and takin' names without even caring.
Guy 1: Holy crap! Did you just see that fight?!
Guy 2: Yeah man, that one dude was swingin' dick heavy! He totally messed that douche-bag up!
Guy 1: Oh shit, I think I found part of his ear...
Inmate 1: What're you in for?
Inmate 2: Oh you know, I got caught swingin' dick heavy on some guy.
Inmate 1: Don't lie to me. If you were really swingin' dick heavy, you would've destroyed the cops too.
by NeiLTheReaLDeaL February 14, 2011
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Everyone. Especially used in all male military units.
"I want every swingin' dick to be there at 0900!"
by Robert McGillicuddy March 17, 2010
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