Washboard

na-1#bd-2#hh-3a#mu#tn-3b#ac-2 wash;board pronunciation: function: noun date: 1742 1 : a broad thin plank along a gunwale or on the sill of a lower deck port to keep out the sea2 : baseboard3 a : a corrugated rectangular surface that is used for scrubbing clothes or as a percussion instrument b : a road or pavement so worn by traffic as to be corrugated transversely c : an abdominal area characterized by prominent and well-defined musculature —usually used attributively lt;a bodybuilder with washboard absgt; lt;a washboard stomachgt;