忘乎所以 (wàng hū suǒ yǐ) | Meaning: (idiom) to get carried away; to lose one's sense of proportion | Chinese Idiom with Pinyin & Origin

so pleased as to lose one's sense of measure · beside oneself with joy得意忘形dé yì wàng xíng

joyfully satisfied · to be immensely proud of oneself · proudly · an air of complacency得意洋洋dé yì yáng yáng

pride · arrogance · conceited · proud of sth骄傲jiāo ào

(idiom) to get carried away; to lose one's sense of proportion