cork means off axis.  ya it came from corkscrew but it is now used to mean off axis.  I can't stand it when people are all like "oh that wasn't corked it was only like 45 degrees off axis"  well then it's cork!  Although I think stuff should just be called 5, switch 7 whatever the spin and way; you take off and then the axis you take just adds to the style of the trick.  If you really want to explain what the trick was like you can say what the axis was but people shouldn't always be like "I'm gonna go do a switch rodeo 900 opposite hand high nose mute"  just call it a switch 9 and that's sufficient.