hangover

Short definition from Wiktionary

Noun

1. 1
   Negative effects, such as headache or nausea, caused by previous drunkenness due to (excessive) consumption of alcohol.
2. 2
   Similar negative effects caused by previous excessive consumption of another substance, such as a drug, coffee, sugar, etc.
3. 3
   An unpleasant relic left from prior events.
4. 4
   A sleeping arrangement, usually in homeless shelters, over a rope.