Posted on March 18, 2019March 18, 2019 And Yet Another Short Conversation While Teaching in China Matt. What is booger?Xiǎo Jié Well, ‘booger’ means snot. What is snot? ‘Snot’ is nose mucus. How to spell ‘mucus’. m-u-c-…oh, nevermind So I showed her. Sometime in 2014