American Heritage Dictionary
(4)
Century Dictionary
GNU Webster's 1913
WordNet
(3)
Elsewhere on the web
She tells Annie that she and Roger were meant for each other but Annie thinks the skank, meaning Esther, took her man.— Blogger News Network
Plus, "OK" might be the greatest ever response to being called a skank.— Premiere's Movie News and Views
That filthy gutter skank is a racist, and there is absolutely no amount of spin that will change that.— Wonkette » top

American Heritage Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.