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jackwacker 

A person who sucks at life. They are incapable of performing basic and simple daily tasks (with the exception of masturbation).
You have your left turn signal on and are clearly trying to merge into the left lane; instead of slowing down to allow you to change lanes, the Jackwacker behind you speeds up to block your access. This guy is a complete Jackwacker; he sucks at life.
jackwacker by plokmijnuhbygv July 19, 2011

jacknickulous 

A ridiculous way of saying ridiculous. Used to accentuate the utter ridiculousness of that to which you refer. During the holiday season, this may be replaced by saintnickulous.
The way Grandma Esther butters her saltines is utterly jacknickulous.
jacknickulous by Blessed Hamo April 22, 2005

Jackzacker 

A homosexual activity, which involves an individual "Jacking off" a minimum of 10 other gentlemen in a single night/party/event. Only once all 10 men have ejaculated can the act be called a Jackzacker.
Brad: Last night at the club i Jacked off 15 blokes
Shane: thats a great Jackzacker-ing
Brad: yep once I hit 12 my right wrist got sore so I had to use left
Shane: is that a record?
Brad: yep my jackzacker record was 13 not its 15!

Jacknocker 

An insult for something stupid.
Or someone stupid.
Stop being such a jacknocker.
Jacknocker by forever brittany August 6, 2010
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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