intransitive verb-·tongued·, -·tongu·ing
to alternate quickly and regularly the use of the tip and base of the tongue in playing a flute, trumpet, etc. to facilitate rapid articulation
intransitive verbdou·ble-tongued, dou·ble-tongu·ing, dou·ble-tongues
To play a rapidly repeated series of notes on a wind instrument by placing the tongue alternately between the positions for t and k.