Law of conservation of hardness 

Law of conservation of hardness says that when one man gets a hard-on, another man has to become soft.

"Foster was banging this hot chick the other day when I walked in on them. I was watching them going at it and was getting a hard-on and at that same moment foster saw me there with a boner a lost his boner. This is the Law of conservation of hardness at its best."

Law of conservation of hardness by PK001 March 4, 2008

Captain Jack Harkness 

A character from Torchwood and some episodes of Doctor who. He is played by John Barrowman. He often fights Aliens from outer space. He has the inability to die, yet still ages. Some theories suggest that he is the younger version of The Face Of Boe.

Captain Jack Harkness can kick Captain Jack Sparrows ass!

Captain Jack Harkness by Angel Of Darkness April 5, 2008

Harkness club 

Similar to the mile high club, you are considered part of the "Harkness club" after having sex on a Harkness table, a large, wooden, oval table seating 12 students. Primarily found in American, New England, prep schools which use the Harkness system of learning such as: Exeter, Lawrenceville, Andover, etc.

"Dude, I totally banged that chick in Mem. Hall last night!"
"Woah, are you part of the Harkness club now?"
"Oh yeaahh!"

*High five*

Harkness club by Hashtag_TheRealMichealCera!! March 5, 2014

Captain Jack Harkness 

Someone so sexy, his own name is a pickup line.

*Walks into a bar and sits next to random woman*
Hey, Captain Jack Harkness
*Everybody in the bar has sex with him*

Captain Jack Harkness by LiftedStarfish March 4, 2017

kate harless 

a girl that can be mean, but we pick on her just to fuck with her, she knows we all lovez her

man that skank is such a kate harless

kate harless by nykkun August 23, 2011

Captian Jack Harkness 

1: Noun, a companion and helper of The Doctor on the Brittish television show Doctor Who. An omnisexual conman who runs the secret organization Torchwood. After becoming a fixed point in time, he ages very slowly, and eventualy becomes the (SPOILER) Face Of Boe.
2: adj. Someone who is very sexualy active, or makes lots of inapropreate passes, jokes or enjoys such. A boundless flirt.
3: Captian of the Inuendo Squad.

Gwen: Have you ever eaten Alien meat before?

Captian Jack Harkness: Yeah, once.

Gwen: What was it like?

Jack: Well, he enjoyed it!

Captian Jack Harkness by CuriousKuro October 2, 2011

hardness 

Resistance of a material to local plastic deformation

Diamond has a greater hardness than any other natural material.

hardness by Douglas Cheaterson October 25, 2007