This word has universal meanings, but is most often used as a verb. It could meananything from puking, to fucking up, to having sexual interactions, and so on. The term usually refers to one with a particularly special personality. Not everyone can be a rork, but many can pull a rork.
Rorke's Drift was a mission station on the Buffalo River that was defended by the men of B Coy, 2-24 Regiment of Foot from thousands of Zulu warriors on the 22nd-23rd of January, 1879.
Guy: Hey did you hear about Rorke's Drift?
Guy 2: Yeah, where those Brits kicked the Zulu's arses!
to laugh unexpectedly loud, at something that wasn't meant to be funny, but is. the laugh is sudden, and hard, and quick, and sounds like something between a roar and a squawk, hence RORKE.
whoa did you see this in the paper? "Survivor of Siamese Twins Joins Parents"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.