Yes, CHOPPERS is a Scrabble word!

Letter values in Scrabble US: C 3, H 4, O 1, P 3, P 3, E 1, R 1, S 1.

Is it a valid word?

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

a grounder that bounces high in the air
informal terms for a human `tooth'
an aircraft without wings that obtains its lift from the rotation of overhead blades
a butcher's knife having a large square blade

Also: meat cleaver.