Word Salad is a phenomenon that happens when a person, usually an elderly person is deprived of the ability to organize thoughts into correct phrases or sentences, something similar happens to people who get drunk or high on some substance. Word salads can also be made up words, or joined words that have no meaning when put together.
Grass Bear while those two words have meaning on their own, when put together they have no semantic meaning even though grammatically those are correct words. Together they result in a non sense phrase and whoever listens to it, is not able to comprehend whats being said.
The person engaging in a word salad speech may not be aware that the words are meaningless, instead they may feel like there is a significance to what they are saying, in reality the illogical sentences convey no meaning. Certain politicians have been noticed engaging in word salads.
Examples include:
Clanging
Where a speech pattern will follow a certain rhyming and other sound associations rather than following a coherent meaningful discourse.
Graphorrhea
This type is non verbal and it occours in written versions of word salads are rarely seen as opposed to logorrhea cases.
Logorrhea
People with logorrhea are known to engage in excessive talking often compulsive and not coherent.
Receptive aphasia
This variant is characterized by someone making fluent speeches but who lack meaning nonetheless, this could be the result of a stroke.