Describe someone who has done something that makes people feel a little strange or unusual in a certain situation. "Uh-huh" is a modal particle, which has no real meaning. The word "tortoise rubbing scallop" comes from two kinds of animals in marine life, tortoise and scallop. Their usual way of life and habits are relatively fixed, and if there is such an action as "rubbing", it will be more abrupt and unreasonable. Therefore, this word is often used to describe someone's behavior or speech as unusual, eccentric or unique.