Definition reprinted with permission from Hood, Stephen B. (editor) available from Stuttering Foundation of America: [amazon 093338825X inline]
A disorder of both speech and language processing that frequently results in rapid, disrhythmic, sporadic, unorganized, and often unintelligible speech. Additional problems include repetition of sounds, syllables, words and phrases, false starts and revisions, sequencing errors, words retrieval problems, run-on sentences and the excessively fast and irregular production of syllables. Persons who clutter usually have great difficulty with self-monitoring.