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tongue twister, word or group of words made difficult to articulate by a close sequence of similar consonantal sounds. Tongue twisters are often passed on for generations, becoming a rich part of folklore. Two widely known English-language twisters are “She sells sea shells beside the seashore” and one beginning “Peter Piper picked a peck of pickled peppers.” Some are more difficult to enunciate—“The sixth sheik’s sixth sheep’s sick.”

Tongue twisters have been recommended for curing hiccups and for curing lisps and other speech defects. They are also used for testing the fit of dentures and for screening applicants for broadcasting positions.