old sweat


nounBritish informal
  1. an old soldier; veteran

  2. a person who has a great deal of experience in some activity

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use old sweat in a sentence