出尔反尔

1. • old: to reap the consequences of one's words (idiom, from Mencius) modern: to go back on one's word
2. • to blow hot and cold
3. • to contradict oneself
4. • inconsistent

Character by character

• 出(chū)go out
• 尔(ěr)thus
• 反(fǎn)contrary
• 尔(ěr)thus