Shing-shing is the sound of two knifes grinding each other so that both may be sharpen. SO shing-shing vocab is sharpen your vocabulary. I got the next list of words from the latest issue of TIME mag, of which I'm an avid reader. See how many you know, btw, i knew none of them.
Above-the-fray, progeny, pariah, caucuses, mulatto, malaise, graft, sedition, sodomy, de facto, plaudits, bedevil, albeit, parochial, tinseled, pantheon, mirthful, solipsistic.
SHING-SHING... SHING-SHING...
[p.s. I got this phrase from a friend who is from VS. whenever his group of friends and him see a cute girl on the streets, the code word is shing-shing. It means, 'let's eat!']