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A semi-erect penis. (See: Semi, Chub) Fifty percent of a Hard-On. A "bulge in the pants," as it were.
I often get a half-on while leering at females on the subway.
Half-On by Time4SumAksion September 22, 2005
Words you can keep
When a mans dick gets bigger but not hard enough yet to not be bendable either with starting to get a boner or starting to go down.
Damn that guy has a huge dick

Nah he just has a half-on
Half-on by Its_Fucking_T0m June 14, 2011
Like a hard on, it comes about when some thing is arousing, but not enough to induce a full erection.
While watching two average women make out, Jim noticed that he was sporting a half on.
half on by Harry T August 17, 2007

half on a sack 

Splitting half the money for a bag of weed.
Yo, you tryin' go half on a sack?
half on a sack by Nignoggins November 17, 2015

half on a baby 

To share a baby with a lover/partner pretty much saying you’ll both take care of the baby equally
Damn I really love her. With her, I would go half on a baby.
half on a baby by Almightty_L January 11, 2018

Half on a bud sack 

Throwing half the money towards a bud sack when cheifing with one of your homy's.
Killam: Wuzz up my nigga, half on a bud sack.

Nick: How much you wanna get.

Killam: Wanna cop a zone.

Nick: Hell yeah.

Killam: I'll hit up tha d-man and go get some Swisha's.
Half on a bud sack by Killam Willam December 14, 2008

Halfon [half on]

Half of an erection.

Not quite full wood, but kind of there.

"Halfon half on is her last name, like a limp dick?"
Halfon [half on] by Austin Walker December 31, 2008
More from Urban Dictionary

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
grebo by cactuscat September 15, 2006
Word of the Day on August 24, 2026
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