Math in modern Chinese slang
The letter "n," used in math summations, has found its way into the Chinese language to mean "a lot." An example of a common use would be, "wo yi jing da le N ci dian hua! ni gan me bu jie?“ Literally, "I called N times! Why didn't you pick up? Another one commonly used when chatting online is 88 to mean bye bye. The number 8 is pronounced "ba," so double eights is, "ba ba," which is a close approximation of "bye bye." "Bye bye," by the way, seems to have surpassed the Chinese word for goodbye (zai jian) as the default farewell in China. Sometimes I hear people on the metro chatting for half an hour entirely in Chinese, and they typically close with a "bye bye."