roostertail verb 2noun 1forms 3 verb2 •To pour like a fountain; to spurt violently.The red dust of Tanguieta rolling and roostertailing behind us. — 2005 •To move rapidly through water, leaving a roostertail wake.The shiny new aluminum tribal Jet-Boat roostertailed up the river, straight for us, kicking up a wake that rocked our boat hard enough to knock the cards off the cooler. — 2005 noun1 •A violent fountain or spray, especially one caused by a moving vehicle or boat.A roostertail of snow kicked up behind me. — 1988 formsroostertailed · roostertailing · roostertails