Rusty rain 

The art of taking a dump on someone with piss ass.

She was a freak in the sheets and treated me to a golden shower and some rusty rain

Rusty rain by Beanflicker2017 September 13, 2017

Getting rusty in the rain barrel 

Jacking off

Guy 1:Yeah last night I was Getting rusty in the rain barrel
Guy 2:Nice.

Getting rusty in the rain barrel by snubtuba November 14, 2020

Rusty Car in the Rain 

A dirty sex act with Norm Macdonald, as per Comedians in Cars Getting Coffee.

"How much for a rusty car in the rain?"

Rusty Car in the Rain by ringbell January 2, 2019

Rusty rainbow 

n. When a younger homosexual man is penetrated from both ends (e.g. spitroasted) by two considerably older gentlemen.

"Bruce and Peter sure gave Steve the ol' rusty rainbow Friday night at Cameron's Audrey Hepburn party. I heard they broke the handicapped toilet bar and were snorting crushed viagra off Steve's back!"

Rusty rainbow by dcdenizen May 8, 2016

Rusty rainbow 

When a male bends his own penis around and inserts it in his anus

Tim why don't you go give your self a rusty rainbow

Rusty rainbow by Knuckelchildren September 11, 2020

Rusty Raincoat 

Fucking a girl on her period while wearing a condom

She was on her period but told me she has herpes. So I gave her the rusty raincoat.

Rusty Raincoat by Jmfnw February 25, 2023