Slack jawed faggot

twat

hes a right slack jawed faggot

Slack jawed faggot by dazza July 3, 2003

slack knuckle 

A male version of the infamous camel toe, esp. when flaccid.

"Holy cow! That is the biggest slack knuckle I've ever seen!"

"That guys pants are so tight his slack knuckle is poking out like crazy."

slack knuckle by Jadder Obbins July 7, 2008

Slack arse

A word used for someone who receives anal a lot.

That girl Wendy over there, I heard the whole football team has put it up her arse. She must be a right slack arse.

Slack arse by Yeahyea June 8, 2015

slack ma girdle 

slang for "suck my dick"

background information: This term was coined in Charleston, Illinois in the mid nineties by the local physics club at Eastern Illinois University. nobody knows exactly why, but the term is still in widespread use today at EIU.

Monica: Do you want me to collate that for you Mr. President?
Bill: Hey bitch slack ma girdle!

slack ma girdle by Shane and Roy November 8, 2007

slack dogg fo shizz 

Origin: Old Ghettish
A word used by lads to say that something is unfair.

Lad 1: I lost 60 cents from the World Stock Market Crash.

Lad 2: Life is so slack dogg fo shizz

slack dogg fo shizz by Jack De March 2, 2009

slack jam 

what happens when you try to take off your pants without first removing your shoes

The deceased was found to have succumbed to slack jam while trying to dress for his friends wedding.

slack jam by peggi May 22, 2011

Slack Rack 

Extremely attractive female who has a decidedly noticeable lack of cleavage.

"Dude Ashley's hot!" "She okay... She would be so much hotter if she didn't have that Slack Rack!"

Slack Rack by Harry James-Parker September 24, 2014