A colloquial and quick way of saying "what's up though"? Originating in Richmond Hill, Ontario, the suburbs north of Toronto (aka the 6), this word was originally designed to show how people from the hood come up with new words by mispronouncing, combining, and rapidly mumbling a series of words. It can be used to greet homies or to display supremacy when you accomplish something over someone else
Anthony: Did you really just headshot that guy from across the map?
Treyvon: WASADO BABY!!!
a slow and/or sluggish moving shopping cart; these are left by smart shoppers at your neighborhoodgrocery store because they are blessed with faulty wheels or their axles arent properly lubed; Wangdongs cause anger because when pushing a wangdong you must exert non-equal forces with your arms in order to push the cart along smoothly, thus making one arm tired while your wangdong skids along the floor of each isle.
Yolanda: Hey, look at that guys wangdong, its totally draggin.
Frodo: I once had a Wangdong like that, except i exchanged it before it sent me into a vortex of spiraling fury.