slack-check 

Verifying the correctness of information by saying or posting something that is wrong, and having people correct you.

The people doing the correcting are typically known as "suckers."

In short, slack-checking is like fact-checking, with less work involved (except for the suckers).

1. Why bother reading about it when you can slack-check it on the internet?

2. (In a 1675 letter by Isaac Newton's lesser-known, wiser and lazier twin brother): "If I have seen further it is by slack-checking on the shoulders of Giants."

slack-check by Jamazon March 16, 2023

slack jaw 

Dropping the mouth open and leaving it open for a time period in astonishment or amazement.

When I got the bill for the $5000.00 she put on my card for clothes at Nordstrom, I was slack jawed.

slack jaw by Silicon Valley Slim May 20, 2009

slack-arsed 

Term used to describe someone who is known for dropping an inordinate number of farts, usually to their to own delight.

Eh, you shit?
Yeah! (gleefully)
You slack-arsed bastard!

slack-arsed by ant August 9, 2004

Slack arse

Does not mean an unfirm bottom, but it means a person who is very lazy

I had to fire David as he was a slack arse

Slack arse by Windy28 September 3, 2009

Slack dick

noun. 1. A person (male) that doesn't draw up to the challenge of a female counterpart. 2. Impotent

Slack dick: A male tennis player that fails to cover his partner in a mixed double.

Slack dick by Hollis Wong and Daniel Mckay January 2, 2009

Slack Wax 

The liquid substance produced after intercourse with the male by himself

I was lonely last night and got Slack Wax everywhere

Slack Wax by Zach Wagner January 19, 2009

slack vagina 

a loose or un-elasticated vaginal opening that whistles when the wind blows, see also Shawn's mom

That girl had such a slack vagina I had to tie a board to my ass to keep from falling in.

slack vagina by Anonymous February 18, 2003