1. 牛 niú. Original meaning: cow. New meaning: awesome.
2. 土 tǔ. Original meaning: dirt. New meaning: unsophisticated, especially of rednecks, hicks, etc.
3. 宅 zhái. Original meaning: residence. New meaning: to like staying at home. Derived from the Japanese culture of staying home to watch anime videos rather than going out.
4. 俗 sú. Original meaning: common, rustic. New meaning: unoriginal, tacky.
5. 贱 jiàn. Original meaning: inexpensive. New meaning: despicable, nasty.
6. 红 hóng. Original meaning: red. New meaning: popular or revolutionary. Red is the color of the Chinese flag.
7. 洋 yáng. Original meaning: ocean. Extended meaning: foreign or fashionable.
8.色 sè. Original meaning: colour. Extended meaning: lewd, dirty.
9. 臭 chòu. Original meaning: stinky. Extended meaning: terrible, to suck at something.
10.萌 méng. Original meaning: sprout. New meaning: cute, adorable, especially of young boys or girls. Derived from the Japanese.
11.潮 cháo. Original meaning: tide. Extended meaning: fashionable.
12.二 èr. Original meaning: two. New meaning: dumb. From the slang expression 二百五 èrbǎiwǔ (“two hundred and fifty” , which means "stupid person"). Comes from an old currency value.