If someone is a mongul, he's an absolute twat.
It can also be used to describe a "mongol," but "mongul" is way more offensive.
"Fuck you man, you mongul."
"Right back at you, mong."
Typically used in the world of sport and videogames.
If you're booming someone, you're absolutely destroying them.
"Dude, I'm freaking booming these noobs."
a dickhead in the sense of an idiot
"Simon is an absolute qwak for doing that."
literally means "cock" and is often used instead of "dickhead"
"Dude, you're a fucking konk."
"At least I have one."
Short for "long black sausage" also known as a long black penis.
"Jakob has such an lbs, man."