unlike the similar word skank, skanque implies that the person has or is expected to have class, but still acts in a skanky manner. a girl from a rich family who acts like a skank, but still expects to be treated as if she has class or as a VIP.
A slightly less disgusting version of "Skank"
You drive her 35 miles to a Vacation give away at a mexican retaurant, and while you're paying the bill she slips her number to a bricklayer from Lodi. you catch the final moment of the handoff and she can't figure out why the ride home is silent.