Yes, SHINNIES is a Scrabble word!

Letter values in Scrabble US: S 1, H 4, I 1, N 1, N 1, I 1, E 1, S 1.

Is it a valid word?

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

a simple version of hockey played by children on the streets (or on ice or on a field) using a ball or can as the puck