Tongue
A tongue was a maneuverable muscle in a lifeform's mouth, used to aid in speech and eating. The tongue had taste buds for the latter one. 

The Butterfly dancers of Rigel X had unusually long tongues, which allowed them to grab butterflies with them. ()

In the alternate reality  developed numb tongue following an allergic reaction to the Melvaran mud flea vaccine.

Hengrauggix could use their tongues while hunting. While he was left on   was hunted by a hengrauggi and almost caught by the tongue of the predator. ()

The Ayt, a species present on Earth in the alternate reality, connected their tongues upon meeting at the Port of San Francisco bar. ()

The Voth were one species with unusually long tongues for humanoids, and used them to lick caught insects off special lamps. () Denobulans were another species with long tongues. ()

Something which one did not mean to say was sometimes called a "slip of the tongue". ( )

While telling his 662nd joke to Geordi La Forge in 2364, Data's synthetic tongue slipped when he mispronounced "including" as "includling", something La Forge thought was funnier than the joke itself. ()

It was said that when Bajoran hasperat is cooked properly, it should "sear the tongue." Macias reminded Ro Laren of this in 2370. ()

According to Lwaxana Troi, the name Odo had a certain lyrical quality and rolled off the tongue. ()

During the Ocampa elogium, one of the woman's parents massaged her feet until her tongue began to swell. ()

When Tom Paris underwent hyper-evolution in 2372, he lost his tongue as part of the transformation. ()

See also
 Pillarian slip
 Tongue depressor
 Tongue-twister

External link 
 

de:Zunge
it:Lingua (anatomia)
Organs