rusty nail 

Inserting a finger into the anus, usually a female finger into a male anus. Related to rusty trombone.

Her boyfriend asked for a rusty nail but since she never did it before she chickened out.

rusty nail by Ephraim Bard January 15, 2011

Rusty Nail 

Popping a turd in the fridge to let it freeze and then using it as a dildo.

"Mate last week I froze one of my shites so I could rusty nail my new bird in the fanny".

Rusty Nail by we_need_jesus September 20, 2017

Rusty nail 

A homeless mans penis

A homeless dude is beating his meat on the side of the road and the little girl said hey daddy what is that and he sayed of sweaty that is a rusty nail

Rusty nail by Omg I just had a shit break January 21, 2016

Rusty Nail 

When you are having sex with a girl on a beach.
Then you pull out cover your dick with sand and ram it back into her vagina
It will feel like you rammed a rusty nail up inside her

I gave my girl a rusty nail

Rusty Nail by Sharpie February 28, 2005

Rusty Nail 

Switching from Anal to Vaginal

Yo I was buttfucking this girl when I pulled out & started nailing her pussy and that dick looked like a rusty nail, literally

Rusty Nail by DudeManBroGuy February 5, 2007

rusty nail 

To pee into a bitches butt during anal sex.

My boy Roofus hooked up Shaniqua with a rusty nail last night, cleaned her right out.

rusty nail by Action On Time September 17, 2007

Rusty Nail 

When you are gettin a chik up the pussy and then u stick ur finger in her pooper real quick so it feels like a nail was poked into her anus!

I gave my bitch the Rusty Nail!

Rusty Nail by Jesse R May 27, 2004