Pronunciation: (dub'ul tung"), [key]
—v.i., -tongued, -tongu•ing. Music.
to interrupt the wind flow by moving the tongue as if pronouncing t and k alternately, esp. in playing rapid passages or staccato notes on a brass instrument. Cf. triple-tongue.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.