gash

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To make a long deep cut in; slash deeply.
• noun A long deep cut.
• noun A deep flesh wound.

from The Century Dictionary.

• To make a long deep incision in, as flesh; cut deeply into the flesh of: as, to gash a person's cheek.
• noun An incision or cut, relatively long and deep; particularly, a cut in flesh; a slash.
• Shrewd; sagacious; having the appearance of sagacity joined with that of self-importance.
• Lively and fluent in discourse; talkative.
• Trim; well dressed.
• To converse; gossip; tattle; gush.

from the GNU version of the Collaborative International Dictionary of English.

• noun A deep and long cut; an incision of considerable length and depth, particularly in flesh.
• transitive verb To make a gash, or long, deep incision in; -- applied chiefly to incisions in flesh.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A deep cut.
• noun slang, vulgar A vulva, pussy
• noun slang, offensive A woman
• noun slang, British Royal Navy Rubbish, spare kit
• noun slang Rubbish on board an aircraft
• noun slang Unused film or sound during film editing
• noun slang Poor quality beer, usually watered down.
• verb To make a deep, long cut, to slash.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a trench resembling a furrow that was made by erosion or excavation
• noun a wound made by cutting
• verb cut open
• noun a strong sweeping cut made with a sharp instrument