Freedom Rock (Lyon County), George, Iowa - Picture of George, Iowa. George Photo: Freedom Rock (Lyon County), George, Iowa.
tongue twister - an expression that is difficult to articulate clearly; `rubber baby buggy bumper' is a tongue twister. locution, saying, expression - a word or phrase that particular people use in particular situations; pardon the expression. Translations.
Black tongue, also known as melanoglossia, is a condition in which the surface of the tongue turns dark or black. It may also become rough and develop a hairy appearance, in which case the condition may be known as black hairy tongue.