crusty rusty 

Catch-all word for an affliction or disease that isn't known but surmised.

"I don't want to go anywhere near that guy- I think he has crusty rusty's or something"

crusty rusty by The Maze June 25, 2008

Crusty Rusty 

When a woman shits on a mans pecker, and dries it out with a hairdryer until completely crusted over then jerks him off until every last dingleberry is gone.

We had McDonald’s then I got a fat crusty rusty from Becky last night.

Crusty Rusty by Pete Stevenson October 27, 2021

Crusty-Rusty 

The process of a girl being on her period, not cleaning herself until the blood and discharge dries and crusts over, followed by a creampie and a vaginal feltching.

"Dude that party was sick! I heard that one guy was soo trashed, he gave a girl a Crusty-Rusty and didnt even know it!!"

Crusty-Rusty by Jared M., Steven S. November 19, 2010

Musty Crusty Rusty Dusty 

MCRD (Short For Musty Crusty Rusty Dusty) Means Something That Is Expressing More Dirty And Unhygienic . This Slang Phrase Or Word Comes From People Who Are Part Of Funny Stuff On Social Media. MCRD Is Expected To Be Funny To Some People But The Rhymes Are The Job.

"you see this quite old innit yeah"

"of course bro its Musty Crusty Rusty Dusty"
"Hahahahhaha this joke never ends"

Musty Crusty Rusty Dusty by Bleddy Drills January 11, 2021

Rusty-crusty bulldozer 

This only happens once a year, usually on the fourth of July. A man and a woman join in sexual relations, and the man dips his man meat in caramel and he puts it in the freezer and waits for the caramel to harden. Then the woman lays on the floor and the man gets running start, then at full speed he rams the woman in her shitnozzle. He will then proceed to push the woman around on her face, thus the name "Rusty-crusty bulldozer".

My girlfriend is all pissy now cuz she got rugburn when i gave her the Rusty-crusty bulldozer.

Rusty-crusty bulldozer by Jawsh2882 August 22, 2010

Rusty Crusty 

Dried shit on the underside of the penis. Occurs from a bad clean up job after anal sex. Usually forms at the penile base and is unseen. Usually discovered on accident by scratching oneself or a partner finds it while giving oral. Whatever, it’s some nasty rusty, crusty shit.

Rachel found some rusty crusty last night when she was sucking muh balls. Since she won’t do anal, I was cold busted and fessed up to punishing her mom’s ass the night before.

That nasty whore left me with rusty crusty. I was scratching my knob and my fingernail was a tad reddish brown.

Rusty Crusty by Eaton Holgoode June 14, 2018

Rusty Crusty.

The build up of brown malicious content in your underpants. Once the phenomena has grown bigger than your fist set your underpants down upon the radiator and let them dry. Soon you will be using your crust for many household tasks.

Guest: Hey this is some realy good cake, The chocholate sprinkles are fantastic.

You: LOL. Your Eating My Rusty Crusty.

Rusty Crusty. by VENOM 647 January 12, 2009