A Chang is the polar opposite of his fellow countryman, the ricecel. The most notable Chang in history was probably Genghis Khan, or Bruce Lee in the modern era. Changs are rarer than Tyrones or Chads in the western world due to asian men having a shorter stature on average, being stereotyped as effeminate and as having a small penis size though northern asia produces more changs than the southern half. Becoming more common due to K-POP fangirls.
http://veritat.info/post/151510493327/e Debunking of Korean penis size myth https://www.scribd.com/doc/103023459/Chinese-Study-1990 Study of chinese men proving normal penis size