TAIPEI - Former Taiwan President Tsai Ing-wen sparked a social media buzz this week after using the internet shorthand "YBSG" for the Japanese slang "yabasugi," among other references to Japan's youth culture.

The Japanese word, which translates as "too crazy" or "mind-blowing," is an intensified form of the widely used slang term "yabai," which expresses shock, excitement and often means "amazing" and "incredible."