Bullying, as defined in M.G.L. c. 71, 370, is the repeated use by one or more students of a written, verbal, or electronic expression or a physical act or gesture or any combination thereof, directed at a target that:

• causes physical or emotional harm to himself or herself of of damage to the target’s property;

• places the target in reasonable fear of harm to himself or herself or of damage to this or her property'

• creates hostile environment at school for target;

• infringes on the rights of the target at school; or

• materially and substantially disrupts the education process or the orderly operation of a school.