When two dicks rap around each other like slugs during sex. Masturbation in this position can cause sensation for both dudes (or girls with dicks).
Alex: RUSTY PIPELINE!

Noah: OKAY, MY DICK ON TOP THOUGH!
by WeinerBoobs69 February 13, 2014
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The act of sitting on a girls face, with your balls resting on her eyes as if shes peering through the lens of a periscope, while she simultaneously jerks you off.
Jen is on her period this week, so I hopped on for a Rusty Periscope.
by Johnny Chimpo221 February 28, 2011
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The pubic hair of a redheaded woman, unshaven just might resemble a rusty steel wool brillo pad.
I wonder if Marlene has a rusty brillo under that skirt or if she shaves.
by Litter May 26, 2009
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A sphincter that has suffered immeasurable trauma to the point where it refuses to allow any more through traffic.
Bucky was on the turps and vindaloo all week and he's developed a rusty shallot. He needs major medical attention.
by The Rat Race April 20, 2018
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A particularly dangerous, urban area of a community. It’s similar to the Bermuda Triangle, but associated with fatal shootings, gang activity and violent crime. The reference to triangle is loosely based.
Chuck told his kids to avoid property in southeast Fort Wayne, he said that's in the heart of Rusty’s Triangle.

Authorities have beefed up their coverage in Rusty’s Triangle after reports of a gang war between the Vice Lords and the Latin Kings.

Vowing revenge, Jovante threatened to shoot up all dem homes in Rusty's Triangle.

Mayor Rizzo was furious that police bungled the sting in Rusty's Triangle.
by FuzzBuzz May 24, 2013
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When a guy with no balls engages in anal sex.
He'll give a rusty steer to a guy or a girl. Doesn't matter to him.
by PDiddy January 28, 2015
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typically the second knuckle of your ring finger after finger fucking a womans tight puss with your pointer and middle fingers only; results from getting poo from her rectum hole on it
Celeste is great. First she slobbed my knob and gobbled the baby gravy then she licked my rusty fucknuckle clean of her week old ass mayo/ fudge stank combo. AND, I posted it on Youtube for all to see.
by cornfritter March 29, 2011
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