To run (a tramp steamer), taking on merchandise at one port and selling it wherever possible or carrying freight anywhere desired.To sail on a tramp steamer.To tread under foot; trample.To tread (clothes) in water, so as to cleanse or scour them.To travel over on foot: as, to tramp a country.To walk, especially to walk with heavy step; tread; march; go on foot.To go about as a vagrant or vagabond.n. The sound made by the feet in walking or marching.n. An excursion or journey on foot; a walk.n. A plate of iron worn by ditchers, etc., under the hollow of the foot, to save the shoe in pressing the spade into the earth.n. An instrument for trimming hedges.n. An itinerant mechanic: same as tramper, 2.n. An idle vagrant; a homeless vagabond. Also tramper.n. A freight-vessel that does not run in any regular line, but takes a cargo wherever the shippers desire: also used attributively, as in tramp steamer. Also called ocean tramp.