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

A swimmer

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.