舌

(public) opinion leader

a glib tongue (with fair words); fluent talk designed to deceive; talk something away

black cow-tongue (species of tonguefish, Paraplagusia japonica)

pentastomid (any worm of phylum Pentastomida)

bamboo sole (Heteromycteris japonica)

Medicine

benign migratory glossitis; geographic tongue

Medicine

lingual orthodontics (e.g. braces)

Rare term

tongue worm (any worm of phylum Pentastomida)

Rare term; Linguistics

diglossia

Rare term; Proverb

being exceptionally stingy

Rare term

splitting the bill so that the others end up paying the whole amount; wheedling the others into paying the whole bill

unclear speech