Basically the gender reverse of the rusty trombone. That said, details matter. As the gentleman lovingly rims the fair maiden, he rubs his index finger along the moistened edges of her (insert preferred term) for her comfort. Next, slowly insert said finger in the aforementioned, while lovingly whistling the tune of her choice, hence creating a chorus of musical pleasure.
Ah girl, my man played me "patience" on the rusty slide-whistle last night, Guns-n-Roses never sounded of felt so good.
The Rusty Slide whistle begins with a woman furiously blowing into their male counterparts asshole, while simultaneously tugging his johnson. This act replicates the steps required to play the slide whistle, thus warranting the name.
"Yo, last night Justine busted out the rusty slide whistle, we made some sweet music"
A sexual act in which two men start by anus scissoring, but then slide in synchronization in a clockwise motion so that major penis-to-anus penetration occurs.
Rob, being the chief, ordered butt-pirate Andy to rusty scissor power slide JP. They thoroughly enjoyed it as Rob video taped the whole thing.
When a girl takes a shit in her own hand and then she gets on her knees, eats your asshole out from behind while the male is standing up and she also jerks you off at the same time with her shit filled hand.
Mark: Hey I got a nasty rusty slidehammer last night after coming home from the Bar
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.