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I found these urban definitions to be hilarious, but please be warned, some parts, MOST PARTS, of this post are offensive.
Enter at your own risk.
A Beaver
Attempt to give a ladies pleasure parts some horizontal refreshment, only to discover that it is far to hairy and looks like Bob marley in a leglock, thus you calling a taxi and going home.
Belgium kiss
A kiss where a loogie is passed from one person to the other.
Dirty Sanchez
Dirty Sánchez describes the practice, in which the active partner, immediately following ejaculation, inserts the finger into the anus of the passive partner and then smears a mixture of semen and feces under the nose of the passive partner. Eventually, the finger is then licked off by both partners. The naming was chosen, because this was to evoke the impression of a "Mexican moustache."
Cleveland Steamer
The cleveland steamer is far more specific than the listings I have seen here. A sexual act by nature (fetish) the cleveland steamer is when one person craps on another person's chest and (very important) then sits down and rocks back and forth like a steam roller.
Arabian Goggles
When a man sits on someones forehead so that his testicles cover there eyes and his shaft runs down the lenth of their nose.
A beating from the Love Truncheon
To slap a woman roughly in the face with your penis. Works better with a massive penis.

Buck Whizzle
The act of urinating on caged animals for training purposes when all other methods have failed. (also works with humans)
Screwage
Describes the liquid products that make up the "wet spot" after doing the horizontal mambo. Synonym - fuckle
P-Clipped
Individually pull out someones pubic hairs with a tweezers.
Rusty Trombone
To get rimmed whilst recieving a hearty reach round, thus resembling a trombone player in full chorus.
Prick
An all around fucktard, dickweed, assrat bastard, that can easily be mistaken for a boner-biting dick-fart fuckface.
Pribble
Small amount of urine that dribbles out of one's penis and onto one's underwear within moments of a post-urination sheathing of the penis. Immune to any of a variety of vigorous and/or embarassing shaking techniques.
Cheese Ranger
An extremely sad and pathetic individual whom wanks constantly.
F'loafernutter
Noun - Derived from fishloaf, used to describe when a man has sex with a woman who hasn't kept up with routine hygiene processes.
I hope you enjoyed these as much as I did!!!!!
Hook