Polysyndeton is a literary device that uses multiple repetitions of the same conjunction (and, but, if, etc), most commonly the word “and.”

Polysyndeton is usually grammatically correct.
Reading Polysyndeton sentences slows the reading pace and is not recommended.

Example of a Polysyndeton sentence and Ghotit corrections:

Original sentence:

Dana invited her new boyfriend to her party with all her friends and they all brought gifts and they played computer games and it was a nice party.
Ghotit Corrected sentence:

Dana invited her new boyfriend to her party with all her friends. They all brought gifts. They played computer games. It was a nice party.

Original sentence:

Erica threw her boyfriend a party and all his friends came, and they all brought presents and they ate a cake and they played video games and they made a mess and no one helped her clean it up and it was a really long day.

Ghotit Corrected sentence:

Erica threw her boyfriend a party. All his friends came. They all brought presents and ate a cake and played video games. They made a mess. No one helped her clean it up. It was a long day.

Additional information regarding Ghotit writing assistance can be found at:

Ghotit spelling corrections
Ghotit grammar corrections
Ghotit punctuation corrections
Ghotit style & clarity