Adjective, : a snaky remark.    From Dictionary.com. 

The mystical expression had gone from the dusky face and the eyes twinkled snakily with a sort of reptilian mirth.    From Wordnik.com.  [The Moon of Skulls]

Before him, its empty arms stretched toward him, its straps and wires twisting snakily in front of him, was The Chair!.    From Wordnik.com.  [O. Henry Memorial Award Prize Stories of 1921] Reference

Tamara Rojo was born to play Carmen, Lauren Cuthbertson was severe, snakily sinuous and creepy in the Micaëla role, and the blokes were all good.    From Wordnik.com.  [Friday evening] Reference

Keaton also does the whole film as a kind of dance with the camera, which moves fluidly and snakily around him, and he is forced to constantly keep moving in order to avoid showing his face.    From Wordnik.com.  [9/25: Samuel Beckett's Film; Christmas U.S.A.; The Purple Rose of Cairo] Reference

Certainly no Irishman with nerves strung to an extraordinary pitch could work with Mike crawling snakily around the lower roof intent upon china remnants whose freaks of shape seemed to paralyze him into moments of agreeable interest.    From Wordnik.com.  [Kenny] Reference

Dudley Pickering moved through the wood as snakily as he could.    From Wordnik.com.  [Uneasy Money] Reference

She fastened her eyes on Eleanor, snakily, sinister, never shifting her glance.    From Wordnik.com.  [The Freebooters of the Wilderness] Reference

Her auburn hair curled over her white forehead, and snakily twisted around her ivory white ears.    From Wordnik.com.  [Purple Springs] Reference

Round and round they went with their snakes, snakily, with a soft undulating movement at the knees and hips.    From Wordnik.com.  [Brave New World]

The road coiled up and up snakily, between rows of leering cactus; and far below the densely wooded heights lay lovely plains through which a great river wandered.    From Wordnik.com.  [The Golden Silence] Reference

She flung the gauntlet at externally venerable Institutions; and she had a hearing, where horrification, execration, the foul Furies of Conservatism would in a shortly antecedent day have been hissing and snakily lashing, hounding her to expulsion.    From Wordnik.com.  [One of Our Conquerors — Complete] Reference

He looked rather a mean little man, standing there; not thrilling as when he appeared in the schoolrooms for there was an unpleasing familiarity in his air, but still decidedly mysterious, for though he smiled and looked snakily at Rosalie, he still glanced from side to side as though furtively looking for something and he still, before committing himself to an action, paused as though meditating.    From Wordnik.com.  [This Freedom] Reference

Kitty — to whom a period of optional study was merely time spent in happy and, in a sense, profitable idleness, for she devoted most of the study-periods to designing those fashions in hairdressing for which, five years later, she became famous — volunteered to sneak out of Hall at ten and make her way snakily into the town in order to purchase doughnuts, ginger-beer, fruit, chocolate and potato crisps.    From Wordnik.com.  [Laurels are Poison]

"devil-fish" of Victor Hugo's romance vividly to mind, -- a misshapen squid making its way snakily over the shells and seaweed.    From Wordnik.com.  [The Log of the Sun A Chronicle of Nature's Year] Reference

Lester is in a state of reckless, deluded grace, and Spacey, whose comic timing is as dry as a perfect martini, manages to make him both snakily dangerous and strangely endearing. ".    From Wordnik.com.  [What 'American' Dream?] Reference

The Veyron’s details — big fan-blade wheels that fill the wheel wells with just a sliver of room to spare, a snakily contoured spoiler in back and a lidless engine compartment (too much heat for a hood!) amidships — finish off the design like ankle straps on a pair of Jimmy Choo heels.    From Wordnik.com.  [A Car You Could Frame] Reference

Instead, it slithers snakily between the two.    From Wordnik.com.  [The Line Of Best Fit] Reference