Definitions of slash:

• noun:   a strong sweeping cut made with a sharp instrument
• noun:   an open tract of land in a forest that is strewn with debris from logging (or fire or wind)
• noun:   a punctuation mark (/) used to separate related items of information
• noun:   a wound made by cutting
• verb:   cut drastically

  Example: "Prices were slashed"

• verb:   cut open

  Example: "She slashed her wrists"

• verb:   cut with sweeping strokes; as with an ax or machete
• verb:   beat severely with a whip or rod
• verb:   move or stir about violently