Gibberish
Rhyme is the term that describes two or more words or syllables that have similar or identical sounds.
Insertion
a statement that sounds good but is essentially meaningless
To utter a meaningless confusion of words or sounds
The term that describes two or more words or syllables that have similar or identical sounds is "rhyme." Rhyme adds musicality to language and is often used in poetry, songs, and other forms of creative writing.
The term that describes the occurrence of the same or similar sounds at the end of two or more words is "rhyme." Rhymes are often used in poetry and song lyrics to create a pleasing sound pattern.
Onomatopoeias are often used to represent words and sounds such as buzz , thud , crack , crash , whoosh , pow , etc. . .
Simple vocal tics are meaningless sounds or noises
Assonance is the term that describes the repetition of similar vowel sounds followed by different consonant sounds in words that are close together in a line of text.
There is no such term as "rote Catholic", so it is meaningless.
Sounds that are barely audible are describes as very quiet. To hear sounds that are very quiet your ears will usually have to strain.
Crackles: Fine crackling or bubbling sounds, commonly heard during inspiration when there is fluid in the alveoli; also called rales.