Bum Knuckle 

A particularly large irritating haemorrhoid.

the steak Geoff had the night before created such difficulty pushing the poo out that it created a real bum knuckle.

Bum Knuckle by Dragon Iron January 5, 2014

bum jiggle

someone who acts as a "stick in the mud" and is extremely lazy.

Emma! Don't be such a bum jiggle!

bum jiggle by puns4food April 23, 2014

Bum-Jobbed 

1) To get a raw deal; hosed

"They fired him for that?! Damn - he got bum-jobbed!" - Drab T-Shirt

Bum-Jobbed by ZJ1067 July 8, 2014

Bum Gobbie 

A) The action of inserting the penis inside the anal cavity through the sphincter - where the anus acts as mouth and pulsates for a pleasurable outcome.

B) When individual A positions themselves directly behind individual B at waist height, seperates the butt cheeks and proceeds to give felacio to said individuals anus - inserting their tounge in and out (in a circular motion) for a pleasurable outcome.

"I'm so parched I'd do anything for a glass of water, I'd even give a bum gobbie to wet my lips"

Bum Gobbie by Soxandsandlesmadeforspeed April 19, 2018

bum pluck 

An estimate without any factual basis, a guess. Originated in the Australian military in place of "wild ass guess" and di you ..." pull that out of your ass?"

It was a pure bum pluck!
Take a bum pluck mate.

bum pluck by DAC9DAJC January 15, 2018

Bum saggle

Another way of calling someone an asshole

You're such a fucking bum saggle

Bum saggle by Fuckwhoevertookmyname May 7, 2018

bum gunner 

Bum gunner. When you are in a rush to get out of traffic so you clench your buttcheeks and floor it. Bum gunniner.

"I was in a rush- so I had go bum gun it."
"I had to pull a bum gunner"

bum gunner by Barc2 May 10, 2018