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 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-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

arse sack 

alternative for bum bag, a bag which one wears atop their buttocks, (secured by a belt-like device with a clip for attachment and detachment) while running, walking, etc.

in the television series, 'the nanny', yeta wears an 'arse sack' incorrectly, and wears it on the front, hence the name 'arse sack' or 'bum bag'

"hey, mum, have you got your arse sack on yet so we can get runnin'"

arse sack by nirvana fanatic July 12, 2005

slackassery 

the act or acts of being a slackass. Also defined by extreme acts of apathy, laziness or lethargy.

Steven has reached a new level of slackassery by getting himself a remote control pivot mount for his widescreen TV so that he can adjust the viewing angle of the TV while laying on the couch.

slackassery by _FILTER_ July 4, 2010