slashing

Dictionary: slash·ing   (slăsh'ĭng)

1. Bitingly critical or satiric: slashing wit.
2. Dashing; pelting: a slashing hailstorm.
3. Brilliant; intense: slashing colors.

The act of swinging a stick at an opponent in ice hockey or lacrosse, in violation of the rules.

adjective

So sharp as to cause mental pain: acerbic, acid, acidic, acrid, astringent, biting, caustic, corrosive, cutting, mordacious, mordant, pungent, scathing, sharp, stinging, trenchant, truculent, vitriolic. See attack/defend, respect/contempt/standing.

The adjective has one meaning:

Meaning #1: as if striking with slashing blows