昏天黑地

1. • lit. dark sky and black earth (idiom)
2. • fig. pitch dark
3. • to black out
4. • disorderly
5. • troubled times

Character by character

• 昏(hūn)muddle-headed
• 天(tiān)day
• 黑(hēi)short name for Heilongjiang 黑龙江 hēilóngjiāng
• 地(dì)earth