gut
n.— «A “gut,” in the language of coastal fishing, is a channel in the sand at the edge of the surf. Guts are cut by wave action and the currents that run parallel to the beach.» —“Getting the right words out on coastal fishing can be a gut-wrenching experience” by Ron Henry Strait in Corpus Christi San Antonio Express-News (Texas) Jan. 6, 2006. (source: Double-Tongued Dictionary)