Synchysis is when words are mixed up in a sentence and don't follow their usual order. It's like playing a game with your words and putting them in a different order than usual.
For example, instead of saying "I went to the store yesterday," you might say "Yesterday I went to the store." See how the words got mixed up? But even though the order is different, the sentence still makes sense.
Synchysis is often used in poetry or literature to make the writing sound more interesting or poetic. It's a bit like a puzzle, where the reader has to figure out the meaning despite the mixed-up words.