233 comes from the expression 233 of cat's paw, which is a kind of expression of banging and laughing. Therefore, many netizens like to add a sentence of 2333 to express the meaning of laughter when posting in post bars and forums. The reason why "Sandy in a daze" is produced by the recommended phrase of input method is because the initial letter of the eight characters is H, which means "hahahahahahahahahahahahaha" in the network.