a retarded snake. aka someone who has snaked you or decided to pull some snakey behaviour while also being retarded.
mollie was a "sanke" as she said she was going to bed, but didnt.
To sink mean to fall off or die in popularity
Or to not be relevant anymore.
Q: Have you heard the new blue face album
A: Nah he Sank
To take something as if a god-given right, to take by deception
Did you score last night? Yeah, I sanksed him and then went to the bar for a few beers