
To take up the last bit of slack on a line such as a halyard, anchor line or dockline by taking a single turn round a cleat and alternately heaving on the rope above and below the cleat while keeping the tension on the tail.
Found on 
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms

 To take up the last bit of slack on a line such as a halyard, anchor line or dockline by taking a single turn round a cleat and alternately heaving on the rope above and below the cleat while keeping the tension on the tail.
Found on 
http://en.wikipedia.org/wiki/Glossary_of_nautical_terms
  No exact match found.