slash, gash -- (a strong sweeping cut made with a sharp instrument)
Overview of verb slash
The verb slash has 5 senses
slash, cut down -- (cut with sweeping strokes; as with an ax or machete)
flog, welt, whip, lather, lash, slash, strap, trounce -- (beat severely with a whip or rod; "The teacher often flogged the students"; "The children were severely trounced")
slash, gash -- (cut open; "she slashed her wrists")