If something is snakey, it is like a snake. It can also mean sneaky or not to be trusted.
Snakey can make people think of danger, trickery, or being untrustworthy.
Examples:
The snakey path wound through the forest.
I don't like that guy, he seems a bit snakey.
Her smile was a little snakey.
The snakey man tried to sell me a broken watch.
The snakey river twisted and turned through the valley.
The snakey fox tried to steal the eggs from the hen.