Dictionary.com's Word of the Year is...
a blended drink, usu. of fruit puréed with milk, yogurt, etc.
a smooth-talking suave male
A person who is attractive, pleasant, and full of finesse: thought of Dr Hugo Barker as a smooth article/ You think you're such a smoothie
[1933+ Students; smoothie is like slicker, but today lacks the connotations of dishonesty and trickiness]