wrecker

Short definition from Wiktionary

Noun

1. 1
   A person or company that dismantles old or wrecked vehicles or other items, to reclaim useful parts.
2. 2
   One who breaks up situations or events.
3. 3
   A tow truck.
4. 4
   A mooncusser (type of land-based pirate).
5. 5
   Someone accused of the formal charge of wrecking; that is, of undermining the state in intangible ways.