Simple past tense and past participle of gash.(verb)
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Use "gashed" in a sentence
"A dagger point broke on the stout links of mail covering his right side, but a sword gashed his left arm."
"Hendricks, quaking with shame and fear, sat shivering before his desk with jaws agape and the forged name gashed into his soul."
"On the other, he has written a history of how aerial bombing -- that most brutal and inexact of modern sciences -- was interpreted by contemporary poets and writers, from W.H. Auden and T.S. Eliot to Virginia Woolf, who saw wide swaths of London "gashed" and "dismantled.""