the pieces of lint that stick to a man's ball sack.

The act of extreme masturbation. You must "knock one out" whilst in close proximity to any of the following; Your mum, a nun, your boss, a member of parliament, George Michael. A person with capabilities to act upon catching you mid self-abuse obvisouly ups the ante. Ejaculation must be reached before your danger wank target comes (no pun intended) to investigate. The higher the chances of being discovered with one's pants down, pulling one's war face is obviously where the danger comes from. The more danger involved the harder (or softer) it is to complete the task in hand (snigger). The more dangerous the better. The chance of being arrested, pummeled by an angry father or having your hand severed by an arab's sabre means that you are a pro "Danger wanker."

noun: Trash, garbage, or filth.
British slang.
Famously, in the 1970s BBC comedy "The Fall and Rise of Reginald Perrin," Reggie opened a doomed (he hoped) shop that sold old bits of trash and scrap recycled into completely useless items. He called it "The Grot Shop." (To Reg's horror, the shop was wildly successful, leading to a string of Grot Shops and, eventually, Grot Industries.)
Something that is "grotty" has a look of filth about it.

Similar to scrub, grot is used to define an unclean or otherwise dirty event, person or thing.

a small orkish relative, approximately 2-3 feet high, they speak in silly squeaky voices. usually kicked, beaten and trodden on by larger orks. And then eaten.

Pornography, whether in print or audio-visual format.

Another word for a sweet or sweets used in South Cheshire.