Slackhole 

Someone who engages in asshole-like behaviour, not through malice or any intentional act, but simply through indifference and lack of any action. Slackholes are so self absorbed with their own invented problems and excuses for their own inaction, they don't realize that their lack of action has an effect on other people.

I have 6 able bodied students who live next door to me. When it snows, they never shovel our shared walk. When they see me doing it, they don't say thank you and don't offer to help. They don't shovel their sidewalk and my daughter slipped and fell on the ice that formed as a result.

When I asked them to shovel their walk, they claimed they had no shovel. When I said they could borrow mine, they said they "didn't want to. They just wanted to live there, crash, and do as little as possible".

What a bunch of slackholes.

See Slacker

Slackhole by CitizenA February 22, 2011

Blackhole sun 

Soundgarden's best known song. Also, the best "Fuck the world" song ever written.

Hang my head, drown my fear, till you all just dissapear
Blackhole sun won't you come and wash away the rain.

Blackhole sun by Wtf donut August 6, 2009

Slacknowledgement

Noun. The acknowledgement your employer gives you for any slacking off you do at work.

"Man, I was on my 2nd hour of Tetris when my boss slacknowledged me. Now I've got to work this weekend."

"I've gotten so much slacknowledgement at work, I'm pretty sure I'll be fired soon!"

Slacknowledgement by gossebaygrad June 8, 2009

snarkhole 

A snarky asshole; an annoying, sarcastic, self-superior, person.

I read about it from the snarkholes at Boing Boing.

snarkhole by TedIII March 12, 2008

Shankhole 

When a makeshift stabbing tool is violently used to create a hole in someone’s flesh. The hole then acts as a sexual orifice, and is repeatedly penetrated by the penis of another participant - the blood from the hole acts as lube.
An adventurous alternative to prison anal intercourse

Gregory gave me so many shankholes last night that I think I need some serious stitches.

Shankhole by loverofshankholes January 23, 2019

youtube blackhole 

where you go to youtube expecting to watch the video you went there for, but you then proceed to get lured into clicking on video after video from that damn "related video" side bar until you are fully hypnotized by youtube. and before you know it, hours have past and you sit there saying to yourself "how the hell did I go from watching puppies to chicks kicking hobos in the balls?"

Bob; yo dude why didnt you text me back last night?
Me; Sorry bro, i got sucked into a youtube blackhole and before i knew it, it was 4am.

youtube blackhole by yungbl00d January 30, 2014

Sackhole 

n. A party and bar game, derived from the "corn-hole" beanbag tossing game, invented by drunk people in Austin, TX.

OFFICIAL SACKHOLE RULES:

2 teams, dividing the number of sacks between them (usually 2 team members, with 3 sacks each).

1. Coin toss determines first team
2. Each team chooses a bet (between 1-5) at the beginning of their throws for that round.
3. First team tosses all of their sacks, followed by second team
4. Scores are counted after all throws, as follows:

A complete miss of the board is negative points
If the sack hits the board but then after lands on the ground that's zero points
If a sack lands on the board and stays for the entire round that's equal points to a teams bet
If a sack goes in the hole that's double the bet points
Points aren't counted till the end of a round; Any sacks that get knocked off the board or fall in the hole after initial throw give points for their final position not their initial position.

To win a team must reach 21+ points
Any team who reaches - 21 points loses

Tie-Breaking rules are determined by the drunkest player on the field.

"Wow, we had some great Sackhole that night, even though I almost broke off my toe-nail!"

Sackhole by SackholeCoach September 12, 2013