Meaning ofmonkeywrenchin English

Noun

1. a tool with adjustable jaw; for gripping
   The mechanic used a monkeywrench to loosen the tight bolt.
2. a type of wrench (alternative term)
   A monkeywrench is often used in plumbing to grip pipes.
3. an unexpected problem or obstacle
   The new policy threw a monkeywrench into our plans for expansion.