Meaning of huāng:
huāng
慌
Verb
to get panicky; to lose one's head
Tā yī tīng dào huài xiāoxī jiù kāishǐ gǎndào huāng le.
他一听到坏消息就开始感到慌了。
He started to feel panicky as soon as he heard the bad news.
Adverb
(coll.) (after 得[de2]) unbearably; terribly
Tā jǐnzhāng de huāng.
他紧张得慌。
He is unbearably nervous.