wango is the definition of a massive penis on a human being who licks to sling there sloppy penis round in circles called a 'helicopter', a man who has a wango is likely to be called Jerome or big louis.
my names Jerome I have a wango!- a Jerome or Big louis is more likely to say this
it's oral sex on a woman. In the song he describes it, "you get her right ankle out, you get her left ankle out, you get her belly propped down, you get her butt propped up"