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.
From Wikipedia. A tongue depressor is a device used in medical practice to depress the tongue to allow for examination of the mouth and throat. The most common modern tongue depressors have thin wooden blade, smoothed and rounded at both ends, but historically tongue depressors have been made of a variety of materials. Since they are inexpensive and difficult to clean, wooden tongue depressors are normally labeled for disposal after a single use.