noun

1. Negative effects, such as headache or nausea, caused by previous drunkenness due to (excessive) consumption of alcohol.

   “I really enjoyed yesterday’s party, but now I have the biggest hangover – I’ll not be doing that again any time soon.”

2. Similar negative effects caused by previous excessive consumption of something else, such as a drug, coffee, sugar, etc.

3. An unpleasant relic left from prior events.

Synonyms: veisalgia