Yes, TWISTING is a Scrabble word!

Letter values in Scrabble US: T 1, W 4, I 1, S 1, T 1, I 1, N 1, G 2.

Is it a valid word?

TWISTING is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the act of distorting something so it seems to mean something it was not intended to mean
the act of rotating rapidly

to move in a twisting or contorted motion, (especially when struggling)
cause (a plastic object) to assume a crooked or angular form
turn in the opposite direction
form into a spiral shape
form into twists
extend in curves and turns
do the twist
twist or pull violently or suddenly, especially so as to remove (something) from that to which it is attached or from where it originates
practice sophistry; change the meaning of or be vague about in order to mislead or deceive
twist suddenly so as to sprain

Also: twist around.