To many people a pirate is an attractive scoundrel such as the one played by Johnny Depp in Pirates of the Caribbean, or they're one legged old codgers with an eye patch and parrot who always stuck to 'the code'. I'm not sure why they've become such considered such fun, romantic and honourable characters when piracy was, and still is, the action of very dangerous criminals. I doubt many of us would like to parlez with a Somalian pirate.
Pirating work is the act of infringing a person's copyright. This can be plagiarism, illegal downloads or reproduction of the work or using a picture you've found on the internet without permission of the person who took it.
Broadcasting without official permission is also known as piracy. I believe pirate radio stations were so named because the early ones broadcast from ships to avoid detection.
Gosh that wasn't very cheerful was it? I can't cheer you up with a picture of Captain Jack Sparrow as I've not taken one, so you'll have to make do with a link and these terrible jokes ...
What are a pirate's favourite pattern for jumpers?
Because they aaaargh!
Where does he buy them?
He doesn't he steals them from Asdaaaaargh! (Or Walmaaaarght! in the U.S.)