knocking shop mattress

An effect of male pattern baldness,whereby the unfortunate male decides not to do the decent thing ie get the clippers out and grows the floundering folicles hoping to conceal the onset of nature by creative combing,suceeding only in an elaborate , threadbare shaping with a shiney(often sunburnt)beacon of scalp shining through for all to see.Resembling the aformentioned sex workers overused mattress.See Robin Gibb,Footballer Kenny Cunningham etc

See that Alan Shearer on Match of the Day,he's got a head like a knocking shop mattress,though his muscular pressence up front,will be sorely missed by Newcastle this season.

by chris ord August 31, 2006

knocking air knuckle

aka KAK - Knocking Air Knuckle, used in conjunction with SKEECOO SKEECOO. A simple, but effective visual using one hand in the air in a motion that looks like knocking on a door. For an incredible effect, try a double knocking air knuckle. Wow, that would be something!

"I told Franny I would go over her house after work, but I'm not really diggin on her any more. I never go back on my word though, so I went over alright and gave her door the ol' knocking air knuckle and then busted outta there!"

by NookieJar October 16, 2009

Knocking on the Door

When a man slaps (knocks) the head of his dick on top of the woman's clitoris in order to open the lips (door) to her pussy. Can also be applied to a woman's nose and her mouth.

Dick: Knock, Knock
Pussy: Who's There
Dick: I'm knocking on the door, open up!
Pussy: Cum on in.....

by Mr. VanV August 12, 2011

knocking on the back door

During anal sex, the person that is doing the penetrating and thrusting is the one that is doing the "knocking," and the anal opening is, obviously, referred to as the "back door."

When Eric and Amy are in bed, he's always knocking at the back door.

by Zeeky H. Bomb March 19, 2005

knocking out the donkey

to fuck a girl in the ass, and right as you're about to cum, you punch her in the back of the head so she tenses up.

The best orgasm I ever had was knocking out the donkey.

by Deez Nutz May 30, 2004

knocking on the back door

n. when a man attempts anal sex without requesting verbal permission. Often involves either precursory acts such as foreplay (rimming, anal fingering) or preceding acts (spreading of ass checks, tapping head of penis on anus, pushing the tip of the penis onto the orifice without full insertion) to signal one's attempt at anal intercourse.

After doing it doggystyle with Jackie, I started knocking on the back door. She didn't object so I totally stuck it in her butt until she screamed.

Richard Johnson kept knocking on the backdoor last night in bed, but I told him to stop since I barely know him.

by calisp August 1, 2013

knocking bones

When two incredibly skinny people have sex.

Chris and Stacy have been knocking bones for a while and Stacy finally got pregnant.

by MooseyFate100 December 29, 2010