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A semi-erect penis.
More specifically a semi-erect, post-ejaculation penis.
That hole looks a bit small, maybe I could thumb in a slacky.
slacky by Christianaj July 20, 2008
Related Words

Slacky Dacks 

A pair of old, warn-in and often dirty sweatpants. Q-tip known for wearing them to the airport for a 24 hour flight to Sydney form London
Robbo sat in his slacky dacks all day, after a big night out on the tins. Safe to say they were still being worn whilst having multiple masty's throughout the day - average room temperatures rise by apprx 5c when he walks into a room wearing them.
Slacky Dacks by Backing in Burma November 20, 2014

Slacky wide on

That annoying and extremely visible, but absolutely useless stage of semi-erection suffered by teen males when observing a pretty girl, riding a bus, doing something completely innocent - and it JUST HAPPENS !
All the guys laughed when Josh got a "slacky wide on" as Mrs Thermapopolis the 48 yr old Greek language teacher bent over to pick up the text-book she had dropped.
Slacky wide on by RecByjam July 27, 2005

slackattack 

A condition that strikes a once helpfull individual and causes them to suddenly not want to do anything. The affliction often never improves and usually the victim becomes more lazy and will slack off beyond all hope.
Dad ( after work ); "Why aren't the leaves raked ?"
Mom (After cleaning house all day, paying bills, still washing last nights dishes and preparing dinner.); "Our houseguest had another slackattack."
slackattack by jpg3 November 28, 2011

Slack-jawed faggot 

n. A person who refuses to chew tobacco with Jesse Ventura.
*Blain (Jesse Ventura) offers tobacco to men on helicopter, but they refuse*
Blain: Bunch of slack-jawed faggots around here. This stuff
will make you a god damned sexual Tyrannosaurus, just like me.
Poncho: holds up his grenade launcher Yeah, strap this on your "sore ass", Blain.

slackerbagging 

When you are too poor to buy a sleeping bag and you have to share with all your bros - Markiplier 2016
I was slackerbagging during the camping trip because i had no money.
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
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