nail Jell-O to a tree 

to do something difficult or impossible, especially when there is no real point in doing so

To eat a spoon full of cinnamon by itself would amount to nailing Jell-O to a tree. (example of nail Jell-O to a tree)

nail Jell-O to a tree by The Return of Light Joker August 25, 2011

Fang-nail 

Noun. A fingernail with teeth-like attributes.

That bitch Jule has fang-nails.

Fang-nail by ajsharerbcc September 1, 2009

Hammer N' Nail 

There are three guys. One is the board, one the hammer, and one the nail. The nail gets in between the board and hammer, and the hammer shoves his dick into the nail so hard, it causes the nail to then enter the board with his dick. Thus, hammering the nail into the board.

"Man, when Ricky said he wanted to Hammer N' Nail, I didn't think I would be the nail!"

Hammer N' Nail by DuckMeAndLuck January 9, 2017

Rusty Nail 

The act of performing anal sex and urinating at the same time. Upon removal resembles a rusty nail.

I gave my gal the rusty nail last night

Rusty Nail by Fishdik April 26, 2011

pin the nail on the jesus

a game played by jews, rather than pin the tail on the donkey.

The Jew across the street invited me to play pin the nail on the jesus, but i told him hell no.

pin the nail on the jesus by RMG September 7, 2004

Nail Polish 

Clear or coloured liquid in a small glass bottle that can be painted on your nails. It's mainly a girl thing, but quite a few guys do it to...
Depending on your opinion, it can make people (both guys and girls) look better or some people prefer natual.

1.

Becca: omg, Jess, you see that guy with the black nails...whoa he's amazing! Do you recon I have a chance?

Jess: Urrg! No way, he's proberbly gay!

Becca: Bet he's not... Hey, lad with the black nails, fancy getting a drink.

Guy: Yeah, sure =)

2.

Bob: Bill you see those girls over there, the one's with the pink nail polish, omg, they're right tarts, everyone knows plain is sexy.

Bill: Yeah man, you said it!

Nail Polish by Jessica-x- August 3, 2009

liquid nail 

Slipping the pickle to your counterpart while being submerged in any body of water.

After practice, the Gators swim coach got horny, and talked the new rookie into a liquid nail.

liquid nail by EVB October 16, 2005