U-lock 

A heavy gauge metal lock used primarily for securing bicycles. The U-lock gets it's name from a 'U' shaped metal rod that has cutouts at each end to fit into a horizontal locking bar. This is considered to be one of the best bicycle locks.

My bike U-lock is heavy, but at least my bike won't get stolen.

U-lock by Falkon November 6, 2006

u-lock 

device used for breaking the jaw bones of motorists who think it is humorous to be inconsiderate and endanger the lives of cyclists on the road.

the act of breaking the jaw bone of a motorist, or perhaps smashing out his window.

safety first: always bring your u-lock.

yo, you shoulda seen the way Tido u-lock'd this dumbo's face right off!

u-lock by the.scumlife September 11, 2010

U-Lock 

The act of a woman wrapping her legs around someones head and using a bicycle U-Lock to lock her ankles together while being pleasured orally.

"Omg! I came 4 times last night! Brian pulled out the U-Lock last night and ate me out for hours!"

U-Lock by Laurel v. Gina December 28, 2024

U lock 

The practice of inserting a double ended dildo into the ass hole and pussy at the same time, forming a U shape.

We were at the bachelor's party and I U locked the stripper!

U lock by Penelope Clearwater June 11, 2008

U-lock Justice 

Using a 2-5 pound piece of steel, originally intended to lock a bike, to do cosmetic damage to a 2,000-10,000 pound piece of steel originally intended to transport human beings used to purposefully do physical, possibly lethal damage to a human being on a bicycle.

After being repeatedly honked at and passed very closely at high speeds I enacted U-Lock justice. The driver now might think twice before purposefully endangering the life of another human being.

U-lock Justice by turdsworth November 22, 2011

U-lock Justice 

Vigilante justice taken against aggressive motorists or "cagers," by bikers.

The heavy U-lock used to lock the bike is used to do damage to a vehicle, like by taking off a mirror.

U-lock Justice is not legal justice, but it's the only justice some cyclists get for being hit by inconsiderate motorists.

I saw some stupid cager get a dose of U-lock Justice after he tried to hit that messenger.

U-lock Justice by Falkon November 6, 2006

U-lock Justice 

When pansy bicycle messengers vandalize automobiles with their bicycle lock. Usually because they think they are above the laws of the road yet still want to peddle in it so they sometimes have accidents with automobiles.

ME: "Some sissy on a bicycle just hit my car with a lock"
FRANK: "Why did he do that?"
ME: "Dont know, he was weaving in and out of traffic and I almost hit him."
FRANK:"Ahh, in their little bike world they call that U-Lock Justice."
ME: "Sounds like something a 13 year old made up. LOL"
FRANK: "LOL"

U-lock Justice by Deez_Nuts June 6, 2007